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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

Clinochlore

1.57

1.57

 

 

2.6

2.7

Greyish green, dark green, brownish black

Lionel, Western Australia

"Pilbara jade", hardness 2.5, spot RI, semi-translucent

 

 

 

 

 

 

 

inert

inert

The Journal of the Gemmological Association of Hongkong 1995 Vol XVIII p21

clinochlore - Kämmererite

1.57

1.57

 

 

 

 

light to dark purple, simular to charoite

India

RI spot, cabochons, massive, opaque to translucent

 

 

 

 

 

 

 

inert

inert

Gems & Gemology 2016 Summer, p206-207

clinochlore - Kämmererite

1.58

1.588

 

 

2.65

2.67

 

Turkey

chelsea : pink

 

 

 

 

 

 

absorption<440nm and band 500-590nm

inert

inert

Gems & Gemology 2008 summer p167-168

Clinochlore

1.58

1.585

 

 

2.62

2.66

green, colour distribution uneven (mottled, fibrous)

Korshunovskoye deposit, Bratsk Reservoir , east of Lake Baikal, Siberia

chatoyant, radial fibrous structure

 

 

 

 

 

 

 

very weak white

weak yellowish white to whitish yellow

Gems & Gemology 1996 summer, p130

Clinochlore

1.585

1.6

 

 

2.73

2.73

dark green in daylight changing to a dark brownish reddish purple in incandescent light

Russia

0.25 and 0.43ct

 

 

 

 

 

 

total absorption to
nearly 470 nm, with a faint line at about 470 nm, intense absorption between 550 and 620 nml and lines at about
660, 680 and 690 nm.

inert

inert

Gems & Gemology 1995 Summer, p129-130

 

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

Clinochlore

1.57

1.6

0.005

0.011

2.6

3

 

 

 

 

 

 

Gemmo.eu 2013

clinochlore - Kämmererite

1.57

1.598

0.002

0.011

2.6

3

 

 

 

 

 

 

Gemmo.eu 2013

Clinochlore

1.571

1.599

0.005

0.011

2.55

2.75

1.571

1.588

 

 

1.576

1.599

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

Clinochlore

1.571

1.599

 

 

2.55

2.75

 

 

 

 

 

 

Gemology Tools Professional 2010

clinochlore - Kämmererite

1.585

1.594

0.002

0.006

2.66

2.66

1.585

1.588

 

 

1.587

1.594

Gemmological Tables, Ulrich Henn, 2004 

clinochlore - Kämmererite

1.585

1.594

0.002

0.006

2.7

2.7

1.585

1.588

 

 

1.587

1.594

Gems, R Webster, 5th edition 1994 

clinochlore - Kämmererite

1.597

1.6

0.003

0.003

2.64

2.64

 

 

 

 

 

 

http://www.gemmology.be 

clinochlore - Kämmererite

1.597

1.6

0.003

0.003

2.64

2.64

1.597

1.597

1.598

1.598

1.599

1.600

http://www.geminterest.com 

clinochlore - Kämmererite

1.597

1.6

0.003

0.003

2.63

2.65

1.597

1.597

1.598

1.598

1.599

1.600

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

clinochlore - Kämmererite

1.597

1.6

0.003

0.003

2.64

2.64

 

 

 

 

 

 

Gemology Tools Professional 2010

clinochlore - Kämmererite

 

 

 

 

2.6

3

 

 

 

 

 

 

John Sinkakas, Gemstone and mineral data book,1972 

clinochlore - Kämmererite

 

 

0.003

0.003

2.64

2.64

1.597

1.597

1.598

1.598

1.599

1.600

Joel Arem, Color Encyclopedia of Gemstones, 1987 

 

CAUSE OF COLOUR

Stone

Colour

Cause of colour

Reference

clinochlore - Kämmererite

red

Cr³+

Roger G. Burns, Mineralogical applications of crystal field theory, Sec Ed, 1993

 

MINERAL INCLUSIONS

 

LOCALITIES

STONE

LOCALITIES

REFERENCE

Clinochlore (seraphinite)

Korshunovskoye (Korzunovskoe; Korzhunovska; Korshunovskiy) Iron mine, Irkutskaya Oblast'

Prebaikalia (Pribaikal'e)

Eastern-Siberian Region

Rusland

Mazurov, M.P., Grishina, S.N., Istomin, V.E., and Titov, A.T. (2007): Geology of Ore Deposits 49(4), 271-284.

Clinochlore - kämmererite

Kop Krom mine, Kop Daglari

Erzurum Province

Eastern Anatolia Region

Turkije

Geïllustreerde Mineralen Encyclopedie, Petr Korbel & Milan Novak, 2001

 

CHEMICAL DATA