Origin
Switzerland, Australia, Brazil
Afghanistan, Brazil, Madagascar, Mozambique, Southern and central Africa, Russia, Sri Lanka
Color
Yellow, Colorless, White, Brownish, Reddish
White, Colorless, Blue, Red, Green, Yellow, Violet
Specific Gravity
5.9-6.3
3.01-3.06
Fracture
Conchoidal, Uneven
Conchoidal
Cleavage
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
Indiscernible
Mohs Hardness
4.5-5
7-7.5
Chemical Composition
CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Luster
Vitreous, Adamantine
-
Pleochroism
Definite dichoric in yellow (yellow to orange-brown)
Strong: dark red pinkish-redHerve Nicolas Lazzarelli
Transparency
Translucent, Transparent
Transparent, Translucent
Refractive Index
1.918-1.936
1.614-1.666
Crystal System
tetragonal
-
Birefringence
0.016
0.014-0.040
Clarity
Translucent
Transparent
Psychology
Awareness
Passion
Healing
Physical healing
Emotional healing
Qualities Associated
Balance & Clarity
Passion