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INVESTIGATIONS

Stone

RI min

RI max

Biref min

Biref max

Dens min

Dens max

Colour

Locality

Info

nx min

nx max

ny min

ny max

nz min

nz max

Spectrum

UVS

UVL

Reference

Topaz

1.606

1.62

0.014

0.014

3.56

3.56

colourless

 

12.2ct

1.606

1.606

1.613

1.613

1.620

1.620

 

inert

inert

ACAM lab  2238

Topaz

1.607

1.617

0.01

0.01

3.56

3.56

sherry

Thomas Range, Utah, USA

 

 

 

 

 

 

 

 

 

 

Gemmologie, Zeitschrift der Deutschen Gemmologischen Gesellschaft 1997 Jun, p89

Topaz

1.608

1.621

0.009

0.01

3.56

3.56

brownish

Katlang, Pakistan

 

1.608

1.611

1.611

1.614

1.617

1.621

 

inert

inert

Gems & Gemology 1986 fall, p140-151

Topaz

1.61

1.62

0.01

0.01

3.56

3.56

colourless

Momeik (Molo) , Mogok, Birma

 

 

 

 

 

 

 

 

weak yellow

weak yellow

The Australian Gemmologist 2005 22, p303-309

Topaz

1.61

1.62

0.01

0.01

3.56

3.56

colourless, orange, brown, light blue

Sakangyi, Mogok, Birma

 

 

 

 

 

 

 

 

 

 

The Australian Gemmologist 2005 22, p303-309

Topaz

1.61

1.62

0.01

0.01

3.56

3.56

colourless to very light blue

Klein Spitzkoppe, Namibië

chelsea: yellow-green

 

 

 

 

 

 

none

inert

inert

Gems & Gemology 1998 summer, p114-125

Topaz

1.61

1.623

0.01

0.011

3.55

3.55

colourless

Katlang, Pakistan

 

1.610

1.612

1.612

1.615

1.620

1.623

none

inert

inert

Gems & Gemology 1986 fall, p140-151

Topaz

1.61

1.62

0.01

0.01

3.56

3.56

colourless to blue, sometimes yellowish to pale brown, pink, rarely blue-green

Killiecrankie Bay, Flinders, Australia

transparent

1.610

1.610

1.613

1.613

1.620

1.620

 

shades of yellow to brown

shades of yellow to brown

The Australian Gemmologist 2004 Vol 22, N°1, p2-8

Topaz

1.61

1.618

0.008

0.008

3.58

3.58

champagne

 

8.36ct

 

 

 

 

 

 

 

inert

inert

ACAM lab  2063

synthetic topaz

1.61

1.62

0.01

0.01

3.57

3.57

light grey

grown at the Institute of Experimental Mineralogy, in Chernogolovka, Russia

semi-transparent

 

 

 

 

 

 

 

 

 

Gems & Gemology 2001 Winter, p339-341

Topaz

1.611

1.62

0.009

0.009

3.55

3.56

green

 

2.59ct, colour zoning

 

 

 

 

 

 

 

green with medium intensity

weakly green

Gems & Gemology 1998 Spring, p44-45

Topaz

1.615

1.625

0.01

0.01

3.52

3.52

colourless

Sri Lanka

1.95ct

 

 

 

 

 

 

 

 

 

Gemmologie, Zeitschrift der Deutschen Gemmologischen Gesellschaft 1999 Jul p106

Topaz

1.616

1.626

0.01

0.01

3.55

3.55

wine yellow

Bias Fortes, Minas Gerais, Brazil

 

 

 

 

 

 

 

 

 

 

Gemmologie, Zeitschrift der Deutschen Gemmologischen Gesellschaft 1997 Jun, p89

Topaz

1.616

1.623

0.007

0.007

3.56

3.56

orangy yellow

Ratnapura, Sabaragamuwa Province, Sri Lanka

21.02ct

 

 

 

 

 

 

 

weak green

inert

GIA Gem Database  34944

Topaz

1.618

1.628

0.01

0.01

3.54

3.54

wine yellow

Schneckenstein, Sachsen, Germany

 

 

 

 

 

 

 

 

 

 

Gemmologie, Zeitschrift der Deutschen Gemmologischen Gesellschaft 1997 Jun, p89

Topaz

1.618

1.625

0.007

0.007

3.56

3.56

greenish blue

St. Anne's Mine, Mwami, Karoi District, Mashonaland, Zimbabwe

25.67ct

 

 

 

 

 

 

 

inert

inert

GIA Gem Database  35258

Topaz

1.621

1.629

0.008

0.008

3.57

3.57

yellowish to greenish brown

 

27.38ct, unusual colour zoning

 

 

 

 

 

 

 

 

 

Gems & Gemology 2011 Fall, p250

Topaz

1.628

1.638

0.01

0.01

3.53

3.53

yellowish orange

Ouro Preto, Minas Gerais, Brazil

19.84ct

 

 

 

 

 

 

 

weak yellow-green

inert

GIA Gem Database  33551

Topaz

1.629

1.642

0.009

0.011

3.51

3.53

pink

Katlang, Pakistan

 

1.629

1.631

1.631

1.634

1.638

1.642

extremely weak line at 682

distinct to briljant milky green

very weak dark red

Gems & Gemology 1986 fall, p140-151

Topaz

1.629

1.637

0.008

0.008

3.54

3.54

imperial topaz: orange

Capao mine and Vermelhao mine, Ouro Preto, Minas Gerais, Brazil

 

1.629

1.629

1.632

1.632

1.637

1.637

 

 

 

The Journal of Gemmology 2000 Vol27, N°3, p133-138

Topaz

1.629

1.637

0.008

0.008

3.52

3.52

orange

Ouro Preto, Minas Gerais, Brazil

 

 

 

 

 

 

 

 

 

 

Gemmologie, Zeitschrift der Deutschen Gemmologischen Gesellschaft 1997 Jun, p89

Topaz

1.63

1.638

0.008

0.008

3.52

3.56

imperial, orange, yellow, brownish orange, pinkish orange, pink, reddish orange, orange-red, sherry red

Capao Mine, Minas Gerais, Bresil

up to 30ct

 

 

 

 

 

 

 

heat treated : stronger fluorescence than not treated

heat treated : stronger fluorescence than not treated

Gems & Gemology 1996 winter p232-241

Topaz

1.63

1.64

0.01

0.01

3.52

3.52

pink

Katlang, Pakistan

 

1.630

1.630

1.632

1.632

1.640

1.640

no

white

inert

The Journal of Gemmology 1985 Vol 19, No ! P664-671

Topaz

1.63

1.64

 

 

3.53

3.53

imperial, sherry to red

Ouro Preto, Minas Gerais, Brazil

 

 

 

 

 

 

 

 

 

 

Gems & Gemology 1983 spring p 12-20

Topaz

1.63

1.639

0.009

0.009

3.53

3.53

purplish red

Sanarka River, Chelyabinsk, Russia

14.32ct

 

 

 

 

 

 

 

inert

weak red

GIA Gem Database  33552

Topaz

1.63

1.638

0.008

0.008

3.52

3.52

red-purple

Katlang mine, Mardan, Pakistan

18.41ct

 

 

 

 

 

 

 

weak green

inert

GIA Gem Database  33584

Topaz

1.63

1.639

0.009

0.009

 

 

bicoloured: purplish pink and orangy yellow

 

7.08ct

 

 

 

 

 

 

 

inert (pink portion), weak chalky green (orangy portion)

weak red (pink portion), moderate red (orangy portion)

Gems & Gemology 1987 Summer,p109-110

Topaz

1.63

1.639

0.009

0.009

3.52

3.52

light amber

Capao Mine, Minas Gerais, Brazil

 

 

 

 

 

 

 

 

 

 

The Journal of Gemmology 1983 Vol18, N°7, p581-591

 

TABLES

Stone

RI min

RI max

Biref min

Biref max

Dens min

Dens max

nx min

 nx max

ny min

ny max

nz min

nz max

Reference

Topaz

1.605

1.64

0.008

0.01

3.49

3.57

1.605

1.630

 

 

1.617

1.640

Tabellen zur Edelstein-Bestimmung, Pschichholz FGA, 1975 

Topaz

1.605

1.645

0.007

0.011

3.48

3.59

 

 

 

 

 

 

Gemmo.eu 2013

Topaz

1.606

1.644

0.008

0.01

3.52

3.57

1.606

1.635

1.609

1.637

1.616

1.644

Gemmological Tables, Ulrich Henn, 2004 

Topaz

1.606

1.649

0.007

0.011

3.49

3.57

1.606

1.629

1.609

1.632

1.616

1.649

http://www.geminterest.com 

Topaz

1.607

1.64

0.008

0.01

3.4

3.65

1.607

1.630

 

 

1.617

1.640

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

Topaz

1.607

1.649

0.008

0.014

3.5

3.57

1.607

1.629

1.610

1.631

1.618

1.649

Joel Arem, Color Encyclopedia of Gemstones, 1987 

Topaz

1.607

1.62

0.009

0.011

3.52

3.58

1.607

1.610

1.610

1.613

1.618

1.620

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

Topaz

1.609

1.643

0.008

0.01

3.49

3.57

1.609

1.633

 

 

1.617

1.643

Bestimmungstabellen für Edelsteine, Birgit Günther, 1981 

Topaz

1.609

1.649

0.008

0.011

3.52

3.56

 

 

 

 

 

 

http://www.gemmology.be 

Topaz

1.609

1.637

0.008

0.01

3.49

3.57

 

 

 

 

 

 

Gemology Tools Professional 2010

Topaz

1.61

1.638

0.008

0.01

3.5

3.6

 

 

 

 

 

 

John Sinkakas, Gemstone and mineral data book,1972 

topaz white and blue

1.61

1.62

0.01

0.01

3.56

3.56

 

 

 

 

 

 

Gems, R Webster, 5th edition 1994 

Topaz

1.619

1.627

0.008

0.008

3.53

3.53

 

 

 

 

 

 

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

Topaz

1.629

1.649

0.008

0.01

3.52

3.53

1.629

1.629

1.631

1.632

1.637

1.649

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

topaz brown and pink

1.63

1.638

0.008

0.008

3.53

3.53

 

 

 

 

 

 

Gems, R Webster, 5th edition 1994 

 

CAUSE OF COLOUR

Stone

Colour

Cause of colour

Reference

Topaz

blue

colour centers of unknown structure

Gems & Gemology Summer 1988

Topaz

blue

colour center

Steffen, Farbe und Lumineszenz von Mineralien, 2000

Topaz

green

yellow and blue colour centers

Gems & Gemology Summer 1988

Topaz

orange

yellow colour center and Cr³+ in octahedral coordination

Gems & Gemology Summer 1988

Topaz

pink

Cr³+ in octahedral coordination

Gems & Gemology Summer 1988

Topaz

pink

Mn³+ +/- Fe³+ substitution for Al³+

Mineralogical Record 26 (1), 1995, 57-60

Topaz

red

Cr³+ in octahedral coordination substituting for Al

D B Hoover, Topaz, 1992, p 71

Topaz

reddish brown

yellow and red colour centers

Gems & Gemology Summer 1988

Topaz

reddish brown

colour center

Steffen, Farbe und Lumineszenz von Mineralien, 2000

Topaz

violet

Cr³+ in octahedral coordination

Steffen, Farbe und Lumineszenz von Mineralien, 2000

Topaz

yellow

colour center of unknown nature

Gems & Gemology Summer 1988

 

MINERAL INCLUSIONS

Inclusion

Stone

Reference

actinolite

Topaz

Topaz - Perfect Cleavage (2011) Extra Lapis English vol 14

albite

Topaz

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

amazonite

Topaz

Australian Gemmologist, 20(3), 1998,p106-107

anhydrite

Topaz

D B Hoover, Topaz, 277pp, 1992

anorthite

Topaz

ExtraLapis No. 13, 1997

apatite

Topaz

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

arsenopyrite

Topaz

D B Hoover, Topaz, 277pp, 1992

avogadrite

Topaz

D B Hoover, Topaz, 277pp, 1992

biotite

Topaz

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

bismuth

Topaz

D B Hoover, Topaz, 277pp, 1992

bismuthinite

Topaz

D B Hoover, Topaz, 277pp, 1992

bixbyite

Topaz

Topaz - Perfect Cleavage (2011) Extra Lapis English vol 14

borax

Topaz

D B Hoover, Topaz, 277pp, 1992

brookite

Topaz

D B Hoover, Topaz, 277pp, 1992

calcite

Topaz

D B Hoover, Topaz, 277pp, 1992

cassiterite

Topaz

D B Hoover, Topaz, 277pp, 1992

chalcopyrite

Topaz

D B Hoover, Topaz, 277pp, 1992

chlorite

Topaz

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

chloritoid

Topaz

Topaz - Perfect Cleavage (2011) Extra Lapis English vol 14

columbite

Topaz

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

cryolite

Topaz

D B Hoover, Topaz, 277pp, 1992

cubanite

Topaz

ExtraLapis No. 13, 1997

dolomite

Topaz

Topaz - Perfect Cleavage (2011) Extra Lapis English vol 14

elpasolite

Topaz

D B Hoover, Topaz, 277pp, 1992

fluorite

Topaz

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

fuchsite

Topaz

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

goethite

Topaz

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

halite

Topaz

D B Hoover, Topaz, 277pp, 1992

helvite

Topaz

Topaz - Perfect Cleavage (2011) Extra Lapis English vol 14

hematite

Topaz

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

hornblende

Topaz

D B Hoover, Topaz, 277pp, 1992

ilmenite

Topaz

ExtraLapis No. 13, 1997

kaolinite

Topaz

ExtraLapis No. 13, 1997

kyanite

Topaz

Topaz - Perfect Cleavage (2011) Extra Lapis English vol 14

lepidolite

Topaz

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

limonite

Topaz

Extra Lapis No. 13 (1997)

microlite

Topaz

http://gems-inclusions.com

monazite

Topaz

Michael O'Donoghue, Gems,6 th edition, 2006

muskovite

Topaz

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

orthoclase

Topaz

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

plagioclase

Topaz

D B Hoover, Topaz, 277pp, 1992

protolithionite

Topaz

Topaz - Perfect Cleavage (2011) Extra Lapis English vol 14

pseudobrookite

Topaz

Topaz - Perfect Cleavage (2011) Extra Lapis English vol 14

pyrophyllite

Topaz

ExtraLapis No. 13, 1997

pyrrhotite

Topaz

Topaz - Perfect Cleavage (2011) Extra Lapis English vol 14

qitianlingite

Topaz

Topaz - Perfect Cleavage (2011) Extra Lapis English vol 14

quartz

Topaz

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

rutile

Topaz

D B Hoover, Topaz, 277pp, 1992

sanidine

Topaz

Topaz - Perfect Cleavage (2011) Extra Lapis English vol 14

sillimanite

Topaz

Topaz - Perfect Cleavage (2011) Extra Lapis English vol 14

spessartine

Topaz

Michael O'Donoghue, Gems,6 th edition, 2006

sphalerite

Topaz

D B Hoover, Topaz, 277pp, 1992

sulfur

Topaz

D B Hoover, Topaz, 277pp, 1992

sylvite

Topaz

D B Hoover, Topaz, 277pp, 1992

teepleite

Topaz

D B Hoover, Topaz, 277pp, 1992

topaz

Topaz

Topaz - Perfect Cleavage (2011) Extra Lapis English vol 14

tremolite

Topaz

Topaz - Perfect Cleavage (2011) Extra Lapis English vol 14

triplite

Topaz

Gemology on line 2014

ulexite

Topaz

D B Hoover, Topaz, 277pp, 1992

varlamoffite

Topaz

Topaz - Perfect Cleavage (2011) Extra Lapis English vol 14

villiaumite

Topaz

D B Hoover, Topaz, 277pp, 1992

wavellite

Topaz

Topaz - Perfect Cleavage (2011) Extra Lapis English vol 14

wolframite

Topaz

D B Hoover, Topaz, 277pp, 1992

zinnwaldite

Topaz

ExtraLapis No. 13, 1997

 

LOCALITIES

STONE

LOCALITIES

REFERENCE

Topaz

Paprok Mine (Papruk Mine; Paprowk Mine)

Kamdesh District

Nuristan Province

Afghanistan

Gems & Gemology Fall 2010, p213

Topaz

 

The Glen

New South Wales

Australia

D B Hoover, Topaz, 277pp, 1992

Topaz

 

Ouro Preto

Minas Gerais

Brazil

Der Aufschluss 3/2002

Topaz

Maçangana (Massangana)

Ariquemes

Rondonia

Brazil

D B Hoover, Topaz, 277pp, 1992

Topaz

Mt. Foster, Bennett

Atlin Mining Division

British Columbia

Canada

Gems & Gemology Fall 2010, p214

Topaz

Gem Claims, Seagull Creek

Seagull Batholith

Yukon Territory

Canada

D B Hoover, Topaz, 277pp, 1992

Topaz

 

Singhbhum District

Jharkhand

India

Gems & Gemology Fall 2010, p213

Topaz

 

Trivandrum

Kerala (Travancore)

India

Gems & Gemology 2000 winter p322

Topaz

 

Balangir

Orissa

India

Gems & Gemology 2000 winter p322

Topaz

Bagdhapa

Sambalpur

Orissa

India

Gems & Gemology 2000 winter p322

Topaz

Sonepur

Subarnapur

Orissa

India

Gems & Gemology 2000 winter p322

Topaz

 

Ambatolampy

Antananarivo

Madagascar

Gems & Gemology 2000winter p321

Topaz

Andapa Pegmatite Field, Andapa Department

Sava (Northeastern) Region

Antsiranana Province

Madagascar

F.Pezzotta(1999`): Madagaskar.Das Paradies der Mineralien und Edelsteine. ExtraLapis nr 17 p.40-41.

Topaz

Departementa Ambositra

Amoron'i Mania region

Fianarantsoa Province

Madagascar

Gems & Gemology 2000winter p321

Topaz

Isahara Pegmatite Field

Atsimo-Atsinanana Region

Fianarantsoa Province

Madagascar

Extra Lapis No 17

Topaz

Andriamena Commune, Tsaratanàna Department

Betsiboka Region

Mahajanga (Majunga) Province

Madagascar

Gems & Gemology 2000winter p321

Topaz

Andilamena

Alaotra Region

Toamasina (Tamatave) Province

Madagascar

Gems & Gemology 2000winter p321

Topaz

Mahabo Commune, Betroka District

Anosy (Fort Dauphin) Region

Tuléar (Toliara) Province

Madagascar

Gemmologie, Dez 1999,p196

Topaz

Naipa mine

Alto Ligonha district

Zambezia Province

Mozambique

Gems & Gemology Fall 2010, p213

Topaz

Sakangyi

Mogok

Mandalay

Myanmar

Gems & Gemology 2000 winter p322

Topaz

 

Molo

Shan State

Myanmar

Themelis, Ted, 2008, Gems and Mines of Mogok.

Topaz

 

Magama

Bauchi State

Nigeria

Gems & Gemology Fall 2010, p213

Topaz

 

Shabu

Nassarawa (Nasarawa) State

Nigeria

Gems & Gemology Fall 2010, p213

Topaz

 

Bomo

Plateau State

Nigeria

Gems & Gemology Fall 2010, p213

Topaz

Sabsar (Supsar; Sapsir; Sabsir; Sabsan; Subsar), Haramosh Mts

Skardu District

Balistan

Pakistan

Dudley Blauwet, (2004) "Pakistan: Minerals, Mountains & Majesty", Lapis International, East Hampton

Topaz

Dassu

Braldu Valley

Baltistan

Pakistan

Mineralogical Record 3/1997

Topaz

Apo Ali Gun (Apaligun; Apaligon), Braldu Valley

Skardu District

Baltistan

Pakistan

Baluwet, D., 2004. Pakistan: Minerals, Mountains and Majesty, Lapis International, 96 p

Topaz

Chhappu, Braldu Valley

Skardu District

Baltistan

Pakistan

Dudley Blauwet, (2004) "Pakistan: Minerals, Mountains & Majesty", Lapis International, East Hampton

Topaz

Drot, Haramosh Mts

Skardu District

Baltistan

Pakistan

Dudley Blauwet,et al (2004) in "Pakistan: Minerals, Mountains & Majesty", Lapis International, East Hampton, Connecticut

Topaz

Foljo (Folji; Fuljo; Pulji; Phuljo), Braldu Valley

Skardu District

Baltistan

Pakistan

Dudley Blauwet, (2004) "Pakistan: Minerals, Mountains & Majesty", Lapis International, East Hampton

Topaz

Sibiri, Basha Valley (Basha Nala; Basna)

Skardu District

Baltistan

Pakistan

Gems & gemology Fall 2010, p214

Topaz

Teston (Tigston; Tisgtung; Tekston), Braldu Valley

Skardu District

Baltistan

Pakistan

D B Hoover, Topaz, 277pp, 1992

Topaz

Mungo

Yuno (4km NW), Shigar Valley

Baltistan

Pakistan

Mineralogical Record 3/1997

Topaz

Ishkapul

Shatot

Gilgit

Pakistan

Mineralogical Record 3/1997

Topaz

Hassanabad Nala (Hasanabad)

Hunza Valley

Gilgit District

Pakistan

Gems & gemology Fall 2010, p214

Topaz

Ghundao hill

Katlang

Mardan district

Pakistan

Geïllustreerde Mineralen Encyclopedie, Petr Korbel & Milan Novak, 2001

Topaz

Malchansker Elbait-Lagerstätte

Chita, Transbaikal

Siberia

Russia

Lapis 1993/1

Topaz

Sherlovaya Gora, Adun-Cholon Range, Nertschinsk (Nerchinsk) Mines, Buriatia (Buryatia) Republic

Transbaikalia (Zabaykalye)

Siberia

Russia

Gems & Gemology Fall 2010, p214

Topaz

 

Merida

Badajoz

Spain

Minerales de Espana, Universidad de Valladolid; http://greco.eis.uva.es/principal.asp

Topaz

 

Lobios

Orense

Spain

Minerales de Espana, Universidad de Valladolid; http://greco.eis.uva.es/principal.asp

Topaz

 

Haputale

Badulla

Sri Lanka

Gems & Gemology 2000 winter p322

Topaz

Kurunegala

Badulla

Central Province

Sri Lanka

Gems & Gemology 2000 winter p322

Topaz

Passara

Badulla

Central Province

Sri Lanka

Gems & Gemology 2000 winter p322

Topaz

Matale

Matale

Central Province

Sri Lanka

Gems & Gemology 2000 winter p322

Topaz

Rattota

Matale

Central Province

Sri Lanka

Gems & Gemology 2000 winter p322

Topaz

Nawalapitiya

Nuwara Eliya

Central Province

Sri Lanka

Gems & Gemology 2000 winter p322

Topaz

Hatton

Nuwara Elyia

Central Province

Sri Lanka

Gems & Gemology 2000 winter p322

Topaz

Elahera

Polonnaruwa

Central Province

Sri Lanka

Gems & Gemology 2000 winter p322

Topaz

Balangoda

Ratnapura

Sabaragamuwa Province

Sri Lanka

Gems & Gemology 2000 winter p322

Topaz

Horana

Kalutara

Southern Province

Sri Lanka

Gems & Gemology 2000 winter p322

Topaz

Mika pegmatite, Rangkul' Highlands

Gorno-Badakhshan District

Pamir Mts

Tajikistan

World of Stones N°11, 1996

Topaz

 

Longido

Kilimanjaro Region

Tanzania

Gems & Gemology 2000winter p321

Topaz

 

Magogoni

Morogoro Region

Tanzania

Gems & Gemology 2000winter p321

Topaz

 

Mvuha

Morogoro Region

Tanzania

Gems & Gemology 2000winter p321

Topaz

 

Lumasulu

Tunduru

Tanzania

Gems & Gemology 2000winter p321

Topaz

 

Muhuwesi River

Tunduru

Tanzania

Gems & Gemology 2000winter p321

Topaz

Emeralite (Ware) mine

San Diego County

California

USA

Mineralogical Record 5/2002

Topaz

Little Three mine, Ramona

San Diego County

California

USA

Mineralogical Record 5/2002

Topaz

Topaz Mountain Gem mine, Matucat Road deposits

Park County

Colorado

USA

Minerals of Colorado, Edwin B. Eckel, Updated by Robert R.Cobban, 1997

Topaz

Thomas Range

Juab County

Utah

USA

Lapis 6/1988

Topaz

 

Bao Loc

Lam Dong Province

Vietnam

Gems & Gemology Fall 2012, p171

Topaz

 

Thach Khoan

Phu Tho Province

Vietnam

Gems & Gemology Fall 2012, p171

Topaz

 

Thuong Xuan

Thanh Hoa Province

Vietnam

Gems & Gemology Fall 2012, p171

Topaz

 

Xuan Le

Thanh Hoa Province

Vietnam

Gems & Gemology Fall 2010, p213

Topaz

 

Tu Le

Yen Bai province

Vietnam

Gems & Gemology Fall 2012, p171

Topaz

 

Karengerenge

Copperbelt Province

Zambia

Gems & Gemology Fall 2010, p213

Topaz

Gwati

Mwami

Karoi (Urungwe)

Zimbabwe

Gems & Gemology Fall 2010, p213

Topaz

St Anne's mine (St. Anne mine)

Mwami

Karoi (Urungwe)

Zimbabwe

Gems & Gemology Fall 2010, p213

 

CHEMICAL DATA

%

Stone

Colour

Locality

Reference

SiO2

Al2O3

MgO

FeO

CaO

Cr2O3

V2O3

Fe2O3

H2O

F

P2O5

Topaz

pink

Katlang

Pakistan

Gems & Gemology Fall 1986, p149

32.6

56.83

0.07

0.08

0.05

0.01

0.01

 

1.6

15.78

 

Topaz

amber

Cerro El Gato, San Luis Potosi

Brazil

The Journal of Gemmology 1998,Vol26, N°1,p36

33.29

57.71

 

 

 

 

 

0.06

 

18.77

0.06

Topaz

orangy-yellow

Capao Mine, Ouro Preto, Minas Gerais

Brazil

The Journal of Gemmology 2000, Vol27, N°3,p135

 

 

 

 

 

 

 

 

 

18

 

Topaz

brownish red

Capao Mine, Ouro Preto, Minas Gerais

Brazil

The Journal of Gemmology 2000, Vol27, N°3,p135

 

 

 

 

 

 

 

 

 

16.2

 

Topaz

orangy-yellow

Vermelhao Mine, Ouro Preto, Minas Gerais

Brazil

The Journal of Gemmology 2000, Vol27, N°3,p135

 

 

 

 

 

 

 

 

 

12.1

 

Topaz

colourless

Cerro El Gato, San Luis Potosi

Brazil

The Journal of Gemmology 1998,Vol26, N°1,p36

33.43

58.1

 

 

 

 

 

0.04

 

19.1

0.07

Topaz

brownish red

Vermelhao Mine, Ouro Preto, Minas Gerais

Brazil

The Journal of Gemmology 2000, Vol27, N°3,p135

 

 

 

 

 

 

 

 

 

15.1

 

 

PPM

Stone

Colour

Locality

Reference

V

Fe

Cr

Mn

Ni

Co

Topaz

orangy-yellow

Capao Mine, Ouro Preto, Minas Gerais

Brazil

The Journal of Gemmology 2000, Vol27, N°3,p135

116

2150

280

<10

22

<5

Topaz

brownish red

Capao Mine, Ouro Preto, Minas Gerais

Brazil

The Journal of Gemmology 2000, Vol27, N°3,p135

114

3100

660

<10

12

<5

Topaz

orangy-yellow

Vermelhao Mine, Ouro Preto, Minas Gerais

Brazil

The Journal of Gemmology 2000, Vol27, N°3,p135

60

5000

160

46

15

<5

Topaz

brownish red

Vermelhao Mine, Ouro Preto, Minas Gerais

Brazil

The Journal of Gemmology 2000, Vol27, N°3,p135

56

4400

380

40

10

<5