|
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 |
1.559 |
1.579 |
0.02 |
0.02 |
2.38 |
2.38 |
light brownish yellow, translucent |
Pennsylvania, USA |
20.18ct |
|
|
|
|
no features |
weak green |
medium blue-green |
GIA Gem Database 35311 |
Brucite |
|
|
|
|
2.35 |
2.35 |
yellow |
Killa Saifullah, Balochistan, Pakistan |
2.26ct, aggregate |
|
|
|
|
|
inert |
inert |
www.spec4gem.info 2018 13/07 |
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