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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

Brucite

1.55

1.56

 

 

2.39

2.39

greyish green and reddish brown, white

 

translucent, carving, jade simulant, RI: distant vision

 

 

 

 

 

inert

inert

The Journal of Gemmology 2010 Vol 32, N°1-4, p68

Brucite

 

 

 

 

 

 

yellow

Killa Saifullah, Balochistan, Pakistan

3.33ct to 3.45ct

 

 

 

 

 

 

 

The Journal of Gemmology 2018 Vol 36, (1), p7

 

TABLES

Stone

RI min

RI max

Biref min

Biref max

Dens min

Dens max

ne min

ne max

no min

no max

Reference

Brucite

1.559

1.6

0.01

0.02

2.39

2.39

1.580

1.600

1.559

1.59

http://www.geminterest.com 

Brucite

1.559

1.6

0.01

0.02

2.39

2.39

 

 

 

 

http://www.gemmology.be 

Brucite

1.559

1.6

0.01

0.02

2.39

2.39

1.580

1.600

1.559

1.59

Joel Arem, Color Encyclopedia of Gemstones, 1987 

Brucite

1.559

1.6

0.01

0.02

2.38

2.41

1.580

1.600

1.559

1.59

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

Brucite

1.56

1.6

0.01

0.02

2.39

2.39

1.580

1.600

1.560

1.590

Michael O'Donoghue, Gems: Their Sources, Descriptions and Identification (2006),  873pp 

Brucite

1.56

1.6

0.01

0.02

2.37

2.41

 

 

 

 

Gemmo.eu 2018

 

CAUSE OF COLOUR

 

MINERAL INCLUSIONS

 

LOCALITIES

STONE

LOCALITIES

REFERENCE

Brucite

Jeffrey Mine (Jeffrey Quarry), Asbestos, Shipton Township

Richmond County

Québec

Canada

Joel Arem, Color Encyclopedia of Gemstones, 1987

Brucite

 

Killa Saifullah

Balochistan (Baluchistan)

Pakistan

The Journal of Gemmology 2018 Vol 36(1) p7

 

CHEMICAL DATA