Origin
Southern and central Africa
Brazil
Color
Yellow, Blue, Black, Green, gray
Yellow, Brown, gray, Greenish
Streak
White
White
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
-
-
Durability
-
-
Specific Gravity
3.43-3.443.83-3.89
1
7.18
👆🏻
Fracture
-
Uneven, Conchoidal
Cleavage
None Observed
Perfect on {01 1 1}
Mohs Hardness
6.5-73.5-4.5
2
10
👆🏻
Chemical Composition
Ca 2(Mg,Al) 6(Si,Al,B) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Pearly
Pleochroism
visible
-
Dispersion
0.020.04
0.005
1
👆🏻
Transparency
-
Transparent, Translucent
Refractive Index
1.696-1.7021.633-1.875
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Triclinic
Trigonal
Birefringence
0.0050.242
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
-
Good
Reproductive
-
-
Digestive
-
-
Psychology
-
Confidence
Healing
Emotional healing
Emotional healing
Qualities Associated
Transformation
Grounding