Origin
Southern and central Africa
Sri Lanka
Color
Grey, Green
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Green, gray
Streak
-
White, Brownish
For which Rashi?
-
-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
Brittle
Solubility
-
insoluble
Durability
-
-
Specific Gravity
3.62-3.686.86-7.03
1
7.18
👆🏻
Fracture
Conchoidal
Subconchoidal, Uneven, Conchoidal, Irregular
Cleavage
Distinct
{100} imperfect, {110} indistinct; partings on {111} or {011}
Mohs Hardness
8-8.56-7
2
10
👆🏻
Chemical Composition
(Mg,Fe,Zn)Al 6BeO 12Ulrich Henn and Claudio C.
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Adamantine, Greasy
Pleochroism
-
Pleochroic haloes have been observed. Dichroic in yellow
Dispersion
0.020.07
0.005
1
👆🏻
Transparency
-
Transparent, Translucent
Refractive Index
1.719-1.7391.990-2.105
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Trigonal
tetragonal
Birefringence
0.014-0.0160.096-0.098
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Physical
Neurological
-
Enhances mental clarity and focus
Cardiovascular
Supports heart health
Supports heart health
Respiratory
-
Poor
Reproductive
-
-
Digestive
-
-
Psychology
Transformation
Focus
Healing
Physical healing
Emotional healing
Qualities Associated
Psychic Abilities
Manifestation