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INVESTIGATIONS

Stone

RI min

RI max

Biref min

Biref max

Dens min

Dens max

Colour

Location

Info

ne min

ne max

no min

no max

Spectrum

UVS

UVL

Reference

Quartz - Amethyst

1.54

1.552

0.009

0.01

 

 

purple, deep purplish red

Bouodi, Anti-Atlas, Morocco

 

1.549

1.552

1.540

1.542

no absorption spectra

inert

inert

Gems & Gemology 2015 Spring, p32-40

Quartz - Amethyst

1.542

1.552

0.01

0.01

2.64

2.66

deep purple

Bouodi Mt, Tata, Morocco

transparent to translucent, chelsea reaction : none

 

 

 

 

none

inert

inert

Gems & Gemology 2009 spring p 62

sunset quartz

1.543

1.552

0.009

0.009

2.65

2.65

orange

Minas Gerais, Brazil

 

1.552

1.552

1.543

1.543

 

 

 

Gems & Gemology 2006 winter, p 277

Quartz - Citrine

1.543

1.552

0.009

0.009

2.65

2.65

yellowish orange

 

26.57ct

 

 

 

 

 

inert

inert

GIA Gem Database  33423

Quartz

1.543

1.552

0.009

0.009

2.64

2.64

dyed green

 

jade imitation, crackled quartz

 

 

 

 

 

 

 

Gemmologie, Zeitschrift der Deutschen Gemmologischen Gesellschaft 2014 Jun, p7

Quartz - Amethyst

1.543

1.552

0.009

0.009

2.65

2.65

medium strong purple

Sao Paulo State, Brazil

113.79 and 114.15 ct,straight and angular colour zoning

 

 

 

 

 

 

 

The Journal of Gemmology 2014 Vol 34, N°4, p 288-289

Quartz - Amethyst

1.544

1.554

0.009

0.009

2.64

2.66

violet to blackish violet

Grota do Coxo, Bahia, Brazil

 

1.552

1.554

1.544

1.544

 

 

 

Revue de  Gemmologie A.F.G. 1979 N°59, Jun

Quartz - Citrine

1.544

1.553

0.009

0.009

 

 

 

Andongologo, Madagascar

30ct to 385ct

 

 

 

 

 

 

 

Gems & Gemology 2009 Summer, p145

Quartz - rock crystal

1.544

1.553

0.009

0.009

2.65

2.65

honey-coloured

Brazil

six-rayed star effect, 105.76ct

 

 

 

 

 

 

 

Gemmologie, Zeitschrift der Deutschen Gemmologischen Gesellschaft 1996 Dec, p153-154

Quartz - rock crystal

1.544

1.553

0.009

0.009

2.65

2.65

 

Sri Lanka

1.32ct

 

 

 

 

 

 

 

Gemmologie, Zeitschrift der Deutschen Gemmologischen Gesellschaft 1999 Jul p106

Quartz - Rose quartz

1.544

1.553

0.009

0.009

2.65

2.65

 

Brazil

 

 

 

 

 

 

 

 

The Journal of Gemmology 1991 Vol22, N°5, p273-286

Quartz synthetic hydrothermal

1.544

1.553

0.009

0.009

2.65

2.65

bicolour blue and green

 

chevron like growth pattern, 42.25 ct

 

 

 

 

 

 

 

Gemmologie, Zeitschrift der Deutschen Gemmologischen Gesellschaft 2013 62/1-2, Jun, p49-51

Quartz - Citrine

1.545

1.554

0.009

0.009

2.65

2.65

yellow

 

 

 

 

 

 

 

inert

inert

GIA Gem Database  33422

Quartz - Amethyst

1.545

1.554

0.009

0.009

2.65

2.65

violetish purple

Bahia, Brazil

23.76ct

 

 

 

 

 

inert

inert

GIA Gem Database  33388

Quartz - Rose quartz

1.545

1.554

0.009

0.009

2.65

2.65

orangy red

 

29.04ct

 

 

 

 

 

inert

inert

GIA Gem Database  33385

Quartz - Amethyst

1.546

1.555

0.009

0.009

2.65

2.65

purple

Congo (DRC)

3.31 - 22.11 ct

 

 

 

 

 

 

 

Gems & Gemology 2007 Spring, p64-65

Quartz - Citrine

1.555

1.56

0.005

0.005

2.66

2.66

orangy yellow

Mweza Range, Matabeleland, Zimbabwe

8.10ct

 

 

 

 

 

inert

inert

GIA Gem Database  35299

 

TABLES

Stone

RI min

RI max

Biref min

Biref max

Dens min

Dens max

ne min

ne max

no min

no max

Reference

Quartz (family)

1.53

1.555

0.001

0.01

2.5

2.9

 

 

 

 

Gemmo.eu 2013

Quartz - Amethyst

1.539

1.55

0.009

0.01

2.64

2.66

1.549

1.557

1.539

1.550

http://www.geminterest.com 

Quartz - Citrine

1.539

1.557

0.009

0.01

2.65

2.651

1.549

1.557

1.539

1.550

http://www.geminterest.com 

Quartz - rock crystal

1.539

1.557

0.008

0.01

2.65

2.651

1.549

1.557

1.539

1.550

http://www.geminterest.com 

Quartz synthetic hydrothermal

1.54

1.555

0.008

0.01

2.62

2.67

 

 

 

 

Gemmo.eu 2013

Quartz - Smoky Quartz

1.543

1.554

0.008

0.01

2.62

2.67

 

 

 

 

Gemmo.eu 2013

Quartz - Rose quartz

1.543

1.554

0.008

0.01

2.62

2.67

 

 

 

 

Gemmo.eu 2013

Quartz

1.544

1.553

0.009

0.009

2.65

2.65

 

 

 

 

John Sinkakas, Gemstone and mineral data book,1972 

Quartz

1.544

1.553

0.009

0.009

2.65

2.67

 

 

 

 

Bestimmungstabellen für Edelsteine, Birgit Günther, 1981 

Quartz

1.544

1.553

0.009

0.009

2.64

2.68

1.553

1.553

1.544

1.544

Gemme, Dati per l'identificazione, P. De Stefano et al, 1993 

Quartz

1.544

1.553

0.009

0.009

2.65

2.65

1.553

1.553

1.544

1.544

Gemmological Tables, Ulrich Henn, 2004 

Quartz

1.544

1.553

0.004

0.009

2.65

2.91

 

 

 

 

http://www.gemmology.be 

Quartz

1.544

1.553

0.009

0.009

2.55

2.75

 

 

 

 

Tabellen zur Edelstein-Bestimmung, Pschichholz FGA, 1975 

Quartz

1.544

1.553

0.009

0.009

2.651

2.651

1.553

1.553

1.544

1.544

Joel Arem, Color Encyclopedia of Gemstones, 1987 

Quartz

1.544

1.553

0.009

0.009

2.65

2.65

 

 

 

 

Gems, R Webster, 5th edition 1994 

Quartz

1.544

1.553

0.09

0.009

2.64

2.66

 

 

 

 

Tables of Gemstone Identification, Roger Dedeyne, Ivo Quintens, 2007 

Quartz - Amethyst

1.544

1.553

0.009

0.009

2.65

2.66

 

 

 

 

http://www.gemmology.be 

Quartz - Citrine

1.544

1.553

0.009

0.009

2.65

2.66

 

 

 

 

http://www.gemmology.be 

Quartz - rock crystal

1.544

1.553

0.004

0.009

2.65

2.65

 

 

 

 

http://www.gemmology.be 

Quartz synthetic citrine

1.544

1.553

0.009

0.009

2.65

2.66

 

 

 

 

http://www.gemmology.be 

Quartz synthetic hydrothermal

1.544

1.553

0.009

0.009

2.64

2.66

 

 

 

 

Tables of Gemstone Identification, Roger Dedeyne, Ivo Quintens, 2007 

Quartz - Amethyst

1.544

1.553

0.009

0.009

2.65

2.655

 

 

 

 

Gemology Tools Professional 2010

Quartz - ametrine

1.544

1.553

0.009

0.09

2.65

2.655

 

 

 

 

Gemology Tools Professional 2010

Quartz - Citrine

1.544

1.553

0.009

0.009

2.641

2.691

 

 

 

 

Gemology Tools Professional 2010

Quartz

1.544

1.553

0.009

0.009

2.65

2.655

 

 

 

 

Gemology Tools Professional 2010

Quartz synthetic hydrothermal

1.544

1.553

0.009

0.009

2.64

2.69

 

 

 

 

Gemology Tools Professional 2010

Quartz - rock crystal

1.544

1.553

0.009

0.009

2.641

2.691

 

 

 

 

Gemology Tools Professional 2010

Quartz - Rose quartz

1.544

1.553

0.009

0.009

2.641

2.691

 

 

 

 

Gemology Tools Professional 2010

 

CAUSE OF COLOUR

Stone

Colour

Cause of colour

Reference

Quartz - rock crystal

blue

inclusions of dumortierite, tourmaline, ilmenite (the latter: of a diameter smaller than visible wavelenghts)

Gems & Gemology Summer 1988

Quartz - Smoky Quartz

brown

Colour center related to the Al³+ impurity

Gems & Gemology Summer 1988

Quartz - Prasiolite

green

Fe²+

Gems & Gemology Summer 1988, Gems & Gemology Spring 1982 p40

Quartz

greenish yellow

colour center

Gems & Gemology Summer 1988

Quartz - rock crystal

greyish blue

inclusions of trolleite and lazulite

Gems & Gemology 2011, Spring, p58

Quartz - Rose quartz

pink

Charge transfer between a substitutional Ti4+ and an interstitial Ti³+; unstable colour center O- ion bridging between substitutional phosphorous atom; dumortierite inclusions

Gems & Gemology Summer 1988

Quartz

purple-red

inclusions of piemontite

Gemmologie, Z. Dt. Gemmol. Ges., 47(4), 1998, 193-198

Quartz - Amethyst

violet to purple

Fe

The Australian Gemmologist 2002, Vol21, N°8,p278

Quartz - Amethyst

violet to purple

colour center ?

Steffen, Farbe und Lumineszenz von Mineralien, 2000

Quartz - Amethyst

violet to purple

O²- -> Fe4+ charge transfer due to irradiation ?

Steffen, Farbe und Lumineszenz von Mineralien, 2000

Quartz - Milky quartz

white

scattering of light by inclusions larger than the visible wavelenghts

Gems & Gemology Summer 1988

Quartz - Citrine

yellow

Fe

The Australian Gemmologist 2002, Vol21, N°8,p278

Quartz - Citrine

yellow to orange

O²- -> Fe³+ charge transfer; various Al³+ related colour centers

Gems & Gemology Summer 1988

 

MINERAL INCLUSIONS

Inclusion

Stone

Reference

actinolite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

aegirine

Quartz - Smoky Quartz

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

aerinite

Quartz - rock crystal

http://www.mineralatlas.com

aerinite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

ajoite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

albite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

allanite

Quartz - rock crystal

Rudolf Rykart, Quarz-Monographie, 1995

allanite-Ce

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

almandine

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

almandine

Quartz - Rose quartz

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

anatase

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

andradite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

anhydrite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

ankangite

Quartz - rock crystal

Gems & Gemology spring 2009, p71-72

ankerite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

anthraxolite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

apatite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

aquamarine

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

aragonite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

arsenopyrite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

aschamalmite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

asphaltite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

astrophyllite

Quartz - rock crystal

www.mindat.org

axinite

Quartz - rock crystal

World of Stones, N°10/1996 p23

barite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

bertrandite

Quartz - Smoky Quartz

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

beryl

Quartz - Smoky Quartz

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

beyerite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

bindheimite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

biotite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

bismuth

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

bismuthinite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

bismuthinite

Quartz - Rose quartz

www.geminterest.com, Gems&Gemology 2005, summer,p 181

bismuthinite

Quartz - Smoky Quartz

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

bitumen

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

boulangerite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

bournonite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

brannerite

Quartz - Smoky Quartz

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

braunite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

brookite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

brookite

Quartz - Smoky Quartz

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

cacoxene

Quartz - rock crystal

Gemmologie Jun 2000,p95-102 = goethite

calaverite

Quartz - Smoky Quartz

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

calcite

Quartz - Smoky Quartz

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

calcite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

calderite

Quartz - Smoky Quartz

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

cassiterite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

celadonite

Quartz - rock crystal

www.inwardgaze.com

celsian

Quartz - rock crystal

Gems & Gemology spring 2009, p71-72

cervantite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

chalcedony

Quartz - rock crystal

Internal World of Gemstones, Gübelin, 1983

chalcopyrite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

chamosite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

charoite

Quartz - rock crystal

Gems & Gemology Fall 2002 p252

chlorite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

chrysocolla

Quartz - rock crystal

www.geminterest.com

cinnabar

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

clinochlor

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

clinozoisite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

cobaltite

Quartz - rock crystal

Rudolf Rykart, Quarz-Monographie, 1995

cobaltite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

columbite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

cookeite

Quartz - rock crystal

Rudolf Rykart, Quarz-Monographie, 1995

copper

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

cosalite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

covellite

Quartz - rock crystal

Gems & gemology spring 2005 p 47-48

cristobalite

Quartz - Amethyst

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

cuprite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

diamond ?

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

diopside

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

diopside

Quartz - Rose quartz

http://djraregems.com

dioptase

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

dolomite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

dravite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

dufrenoysite

Quartz - rock crystal

Joel Arem, Color Encyclopedia of Gemstones, 1987

dumortierite

Quartz - rock crystal

www.geminterest.com

dumortierite

Quartz - Rose quartz

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

edenite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

elbaite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

emerald

Quartz - Rose quartz

Gemms & Gemmology fall 2008

emerald

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

emplectite

Quartz - rock crystal

www.mindat.org

emplectite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

epididymite

Quartz - Smoky Quartz

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

epidot

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

ferberite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

fluorite

Quartz - Amethyst

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

fluorite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

fuchsite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

fuchsite

aventurine quartz  - crypto-crystalline quartz

Gemmological Tables, Ulrich Henn , GGA, 2004

galena

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

galenobismutite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

gersdorffite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

giessenite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

gilalite

Quartz - rock crystal

www.geminterest.com

goethite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

goethite

Quartz - Amethyst

 

goethite

Quartz - Smoky Quartz

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

goethite

Quartz - Citrine

Internal World of Gemstones, Gübelin, 1983

goethite

Quartz - Amethyst

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

gold

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

gormanite

Quartz - rock crystal

Zeitschrift der Deutschen Gemmologischen Gesellschaft, 1990, Sep, p153-157

graphite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

grünerite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

gustavite ?

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

gypsum

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

halite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

hambergite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

hambergite

Quartz - Smoky Quartz

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

hastingsite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

hedenbergite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

helvite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

hematite

Quartz - rock crystal

www.geminterest.com

hematite

Quartz - Amethyst

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

hematite

Quartz - Smoky Quartz

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

hematite

Quartz - Citrine

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

hematite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

heyrovskyite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

hollandite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

hoornblende

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

hübnerite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

ilmenite

Quartz - Rose quartz

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

ilmenite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

ilmenite

Quartz - Smoky Quartz

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

ilvaite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

indicolite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

izoklakeite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

jamesonite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

jarosite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

kaolinite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

kinoite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

kobellite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

kyanite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

lazulite

Quartz - rock crystal

Gemmologie, Sep 1998 p122

lepidocrocite

Quartz - rock crystal

Gemmologie Jun 2000,p95-102 = hematite

lepidolite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

limonite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

lithiophilite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

macfalliet

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

magnesite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

magnetite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

manganite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

manganite

Quartz - Amethyst

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

marcasite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

meneghinite

Quartz - rock crystal

www.mindat.org

microlite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

millerite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

minasgeraisite-Y

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

molybdenite

Quartz - rock crystal

Gemms & gemology 2004 winter p353

monazite

Quartz - Rose quartz

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

monazite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

muskovite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

nepouite

Quartz - rock crystal

Gems & Gemology 2004 Winter, p 333

niobite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

orthoclase

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

paakkonenite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

papagoite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

parasepiolite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

parisite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

pezzotaite

Quartz - rock crystal

Gems & Gemology Spring 2005 p65-66

phenakite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

piemontite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

plagioclase

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

plancheite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

pumpellyite

Quartz - rock crystal

Gems & Gemology 2009 Fall p212

pyrargyrite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

pyrite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

pyrite

aventurine quartz  - crypto-crystalline quartz

www.geminterest.com

pyrite

Quartz - Citrine

Gems & gemology 2007 summer p166

pyrochlor

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

pyrolusite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

pyrophyllite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

pyrrhotite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

quartz

Quartz - rock crystal

Rudolf Rykart, Quarz-Monographie, 1995

rhodochrosite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

riebeckite

Quartz - rock crystal

Rudolf Rykart, Quarz-Monographie, 1995

ripidolite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

rutile

Quartz - Smoky Quartz

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

rutile

Quartz - rock crystal

www.geminterest.com

scapolite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

scheelite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

schörl

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

shattuckite

Quartz - rock crystal

http://www.mineralatlas.com

siderite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

sillimanite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

sillimanite

Quartz - Rose quartz

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

silver

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

spessartine

Quartz - Smoky Quartz

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

spessartine

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

spessartine

Quartz - Rose quartz

Gems & Gemology 2003 summer p162

spessartite

Quartz - Citrine

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

sphalerite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

spodumene

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

stannite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

stefanite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

sterryite

Quartz - rock crystal

www.mindat.org

stibnite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

sugilite

Quartz - rock crystal

http://www.mineralatlas.com

sulphur

Quartz - rock crystal

Rudolf Rykart, Quarz-Monographie, 1995

svanbergite

Quartz - rock crystal

Gems & Gemology 2007 Winter

synchisite-Ce

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

tangeite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

tantalite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

tellurium

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

tetrahedrite ?

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

thortveitite

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

titanite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

topaz

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

tourmaline

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

tremolite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

tremolite

Quartz - Smoky Quartz

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

triphylite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

triploidite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

uvite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

violane

Quartz - rock crystal

http://www.thegemtrader.com

xenotime-Y

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

zinkenite

Quartz - rock crystal

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

zircon

Quartz - Rose quartz

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

zircon

Quartz - rock crystal

Jaroslav Hyrsl, Magic World: Inclusions in Quartz, 2003

 

LOCALITIES

STONE

LOCALITIES

REFERENCE

amethyst-Quartz

Villa Esperança, Pau d'Arco

250 km south of Maraba

Para

Brazil

Gems & Gemology Winter 1988, p214-228

amethyst-Quartz

Maraba

Carajas mineral province

Para

Brazil

Gems & Gemology Winter 1988, p214-228

amethyst-Quartz

 

Irai

Rio Grande do Sul

Brazil

Gems & Gemology Winter 1988, p214-228

amethyst-Quartz

 

Santa Maria

Rio Grande do Sul

Brazil

Gems & Gemology Winter 1988, p214-228

amethyst-Quartz

Mahasolo Commune, Tsiroanomandidy District

Bongolava Region

Antananarivo Province

Madagascar

Gemmologie, Dez 1999,p196

amethyst-Quartz

Soavinandriana Department

Itasy Region

Antananarivo Province

Madagascar

Gemmologie, Dez 1999,p196

amethyst-Quartz

 

Departementa Ambatofinandrahana, Amoron'i Mania region

Fianarantsoa Province

Madagascar

Gemmologie, Dez 1999,p196

amethyst-Quartz

Tsaratanana Department

Betsiboka Region

Mahajanga (Majunga) Province

Madagascar

Gemmologie, Dez 1999, p196

amethyst-Quartz

 

Boriziny

Mahajanga (Majunga) Province

Madagascar

Gemmologie, Dez 1999,p196

amethyst-Quartz

 

Vatomandry

Toamasina Province

Madagascar

Gemmologie, Dez 1999,p196

amethyst-Quartz

 

bouodin Mt

Tata

Morocco

Gems & Gemology Spring 2009, p62

amethyst-Quartz

Sarusas Mine

Skeleton Coast Park

Namib Desert

Namibia

Gems & Gemology spring 2005 p54

amethyst-Quartz

Kilosa, 80 km west of Morogoro

 

 

Tanzania

Gemmologie, 1997, Mar, p31

amethyst-Quartz

 

Lake Manyara

Arusha Region

Tanzania

Gemmologie, 1997, Mar, p31

amethyst-Quartz

 

Mvuha

Morogoro Region

Tanzania

Gemmologie, 1997, Mar,p31

amethyst-Quartz

 

Tunduru-Songea area

Ruvuma Region

Tanzania

Gemmologie, 1997, Mar,p31

amethyst-Quartz

Purple Lily prospect

San Bernardino County

California

USA

Gems & Gemology, Summer 2004 p 170

ametrien-Quartz

Anahi Mine (Anai) mine, La Gaiba district

Sandoval province

Santa Cruz

Bolivia

Zeitschrift der Deutschen Gemmologischen Gesellschaft, 1994, Dez, p 117-126

ametrien-Quartz

 

 

Minas Gerais

Brazil

http://minerals.gps.caltech.edu/AMETRINE/Index.htm

ametrien-Quartz

Ontario Gem Mine, Pearl Station

Thunder Bay District

Ontario

Canada

Rocks & Min : 59:266.

ametrien-Quartz

 

Hyderabad

Andhra Pradesh

India

http://minerals.gps.caltech.edu/AMETRINE/Index.htm.dat.org

ametrien-Quartz

Crystal Tips No. 2 pit, Petersen Mountain

Wascoe County

Nevada

USA

Rocks & Minerals 82:415-418.

citrine - Quartz

 

Andongologo

 

Madagascar

Gems & Gemology Summer 2009, p145

citrine - Quartz

 

Vakinankaratra Region (Betafo - Antsirabé region)

Antananarivo Province

Madagascar

Gemmologie, Dez 1999,p196

citrine - Quartz

 

Departementa Ambatofinandrahana, Amoron'i Mania region

Fianarantsoa Province

Madagascar

Gemmologie, Dez 1999,p196

citrine - Quartz

 

Tunduru-Songea area

Ruvuma Region

Tanzania

Gemmologie, 1997, Mar,p31

rock crystal - Quartz

 

Mananara

 

Madagascar

Gemmologie, Dez 1999, p196

rock crystal - Quartz

Anjozorobe

Ivon' i Merina region

Antananarivo Province

Madagascar

Gemmologie, Dez 1999, p196

rock crystal - Quartz

 

Vakinankaratra Region (Betafo - Antsirabé region)

Antananarivo Province

Madagascar

Gemmologie, Dez 1999,p196

rock crystal - Quartz

Departementa Ambositra

Amoron'i Mania region

Fianarantsoa Province

Madagascar

Gemmologie, Dez 1999,p196

rock crystal - Quartz

Vondrozo Departement

Atsimo-Atsinanana Region

Fianarantsoa Province

Madagascar

Gemmologie, Dez 1999,p196

rock crystal - Quartz

 

Departementa Ambatofinandrahana, Amoron'i Mania region

Fianarantsoa Province

Madagascar

Gemmologie, Dez 1999,p196

rock crystal - Quartz

Kandreho area, Maevatanana District

Betsiboka Region

Mahajanga (Majunga) Province

Madagascar

Gemmologie, Dez 1999, p196

rock crystal - Quartz

 

Tunduru-Songea area

Ruvuma Region

Tanzania

Gemmologie, 1997, Mar,p31

rose quartz

Ribeirao do Largo (Quartzo Roseo)

Itambé

Bahia

Brazil

The Journal of Gemmology

rose quartz

Fazenda Conceiçao (Flamengo)

Jaguarari

Bahia

Brazil

The Journal of Gemmology

rose quartz

Corrego de Lodo (Fazenda Mangerona)

Macarani

Bahia

Brazil

The Journal of Gemmology

rose quartz

Olho d'Agua (Ilha Alegre, Lavra do Bianor)

Itaobim

Minas Gerais

Brazil

The Journal of Gemmology

rose quartz

Pé de Chapada deposit, Carai

Jequitinhonha valley

Minas Gerais

Brazil

The Journal of Gemmology

rose quartz

Corrego Piabanha (Lavra Schupp)

Joaima

Minas Gerais

Brazil

The Journal of Gemmology

rose quartz

Boqueirao (Zé de Tonia, Cobico, Cubicula)

Salinas

Minas Gerais

Brazil

The Journal of Gemmology

rose quartz

Fazenda Sao Jorge (Veredinha, Boqueirao)

Vitoria da Conquista

Minas Gerais

Brazil

The Journal of Gemmology

rose quartz

Alto Feio deposit

 

Paraiba

Brazil

The Journal of Gemmology

rose quartz

Borracha (Sitio Novo)

Nazaré da Mata

Paraiba

Brazil

The Journal of Gemmology

rose quartz

Deobhog area

Raipur District

Chattisgarh (Chhattisgarh)

India

Gems & Gemology 2000 winter p321

rose quartz

 

Mysore

Karnataka

India

Gems & Gemology 2000 winter p321

rose quartz

 

Salem

Tamil Nadu

India

Gems & Gemology 2000 winter p321

rose quartz

 

Tsiroanomandidy

Antananarivo Province

Madagascar

Gems & Gemology winter 2000 p 321

rose quartz

Departementa Ambositra

Amoron'i Mania region

Fianarantsoa Province

Madagascar

Gems & Gemology winter 2000 p 321

rose quartz

Andilamena

Alaotra Region

Toamasina (Tamatave) Province

Madagascar

Gems & Gemology winter 2000 p 321

rose quartz

Moramanga, Andilamena Department

Alaotra Region

Toamasina (Tamatave) Province

Madagascar

Gems & Gemology winter 2000 p 321

rose quartz

 

Ambatondrazaka

Toamasina (Tamatave) Province

Madagascar

Gems & Gemology winter 2000 p 321

rose quartz

 

Alto Ligonha district

Zambezia Province

Mozambique

Gems & Gemology 2000 winter p321

rose quartz

Hoffnungsstrahl

Swakopmund

Damaraland

Namibia

Gems & Gemology 2000 winter p321

rose quartz

Roselis

Swakopmund

Damaraland

Namibia

Gems & Gemology 2000 winter p321

smoky quartz

Soavinandriana Department

Itasy Region

Antananarivo Province

Madagascar

Gemmologie, Dez 1999,p196

smoky quartz

 

Tsiroanomandidy

Antananarivo Province

Madagascar

Gemmologie, Dez 1999,p196

smoky quartz

 

Vakinankaratra Region (Betafo - Antsirabé region)

Antananarivo Province

Madagascar

Gemmologie, Dez 1999,p196

smoky quartz

Vondrozo Departement

Atsimo-Atsinanana Region

Fianarantsoa Province

Madagascar

Gemmologie, Dez 1999,p196

smoky quartz

 

Departementa Ambatofinandrahana, Amoron'i Mania region

Fianarantsoa Province

Madagascar

Gemmologie, Dez 1999,p196

smoky quartz

Andilamena

Alaotra Region

Toamasina (Tamatave) Province

Madagascar

Gemmologie, Dez 1999, p196

smoky quartz

Otjua

Karibib

 

Namibia

Gems & Gemology 2002 fall p 268

 

CHEMICAL DATA (%)