|
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 |
Dolomite |
1.5 |
1.68 |
0.18 |
0.18 |
2.92 |
2.92 |
colourless |
New Mexico, USA |
14.36ct |
|
|
|
|
no features |
very weak pinkish orange |
weak pinkish orange |
GIA Gem Database 35183 |
Dolomite |
1.51 |
1.68 |
0.17 |
0.17 |
2.94 |
2.94 |
colourless |
|
7.88ct |
|
|
|
|
|
inert |
inert |
GIA Gem Database 35391 |
Dolomite |
1.51 |
1.68 |
0.17 |
0.17 |
2.87 |
2.87 |
colourless |
|
1.18ct |
|
|
|
|
|
|
|
ACAM lab
1073 |
Dolomite |
1.6 |
1.6 |
|
|
2.63 |
2.63 |
orangy brown, cream |
Cayman Islands |
"Caymanite", opaque beads, spot RI |
|
|
|
|
|
inert to orangy yellow |
inert to orangy yellow |
Gems & Gemology 1994 Fall, p193 |
Dolomite |
|
|
|
|
|
|
light blue, transparent |
Colombia |
1.13ct |
|
|
|
|
|
|
|
Gems & Gemology 2011 Winter, p317 |
TABLES
Stone |
RI
min |
RI
max |
Biref
min |
Biref
max |
Dens
min |
Dens
max |
ne
min |
ne
max |
no
min |
no
max |
Reference |
Dolomite |
1.497 |
1.685 |
0.175 |
0.185 |
2.79 |
2.92 |
|
|
|
|
Gemmo.eu
|
Dolomite |
1.5 |
1.679 |
0.179 |
0.179 |
2.8 |
2.8 |
|
|
|
|
John Sinkakas, Gemstone and mineral data
book,1972 |
Dolomite |
1.5 |
1.703 |
0.179 |
0.185 |
2.8 |
2.95 |
1.500 |
1.520 |
1.679 |
1.703 |
Gemme, Dati per l'identificazione, P. De
Stefano et al, 1993 |
Dolomite |
1.5 |
1.703 |
0.179 |
0.185 |
2.85 |
2.93 |
|
|
|
|
http://www.gemmology.be |
Dolomite |
1.5 |
1.703 |
0.179 |
0.185 |
2.85 |
2.93 |
1.500 |
1.520 |
1.679 |
1.703 |
http://www.geminterest.com |
Dolomite |
1.5 |
1.703 |
0.179 |
0.185 |
2.85 |
2.93 |
1.500 |
1.520 |
1.679 |
1.703 |
Joel Arem, Color Encyclopedia of Gemstones,
1987 |
Dolomite |
1.5 |
1.703 |
0.179 |
0.185 |
2.8 |
2.95 |
1.500 |
1.520 |
1.679 |
1.703 |
Tables of Gemstone Identification, Roger Dedeyne,
Ivo Quintens, 2007 |
Dolomite |
1.5 |
1.75 |
0.179 |
0.202 |
2.85 |
3.1 |
|
|
|
|
Gemology Tools Professional 2010 |
Dolomite |
1.502 |
1.698 |
0.177 |
0.185 |
2.8 |
2.95 |
|
|
|
|
Bestimmungstabellen für Edelsteine,
Birgit Günther, 1981 |
Dolomite |
1.502 |
1.698 |
0.177 |
0.185 |
2.8 |
2.95 |
1.502 |
1.513 |
1.679 |
1.698 |
Gemmological Tables, Ulrich Henn,
2004 |
Dolomite |
1.502 |
1.681 |
0.179 |
0.179 |
2.8 |
2.9 |
|
|
|
|
Gems, R Webster, 5th edition 1994 |
CAUSE OF
COLOUR
MINERAL
INCLUSIONS
Inclusion |
Stone |
Reference |
svanbergite |
Dolomite |
Gems & Gemology 2016 Spring, p77 |
LOCALITIES
CHEMICAL DATA