Origin
Southern and central Africa
Southern and central Africa
Color
Colorless, White, Yellow, Blue, Green, gray
Black, Brownish, Brown
Streak
White
Brown
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
Brittle
Solubility
Soluble
-
Durability
-
-
Specific Gravity
2.95-2.964.5-4.8
1
7.18
👆🏻
Fracture
Conchoidal
Uneven
Cleavage
None
None, parting may develop along {111}
Mohs Hardness
7-7.55.5
2
10
👆🏻
Chemical Composition
Mg 3B 7O 13ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Fe++Cr2O4
Luster
Vitreous, Adamantine
-
Pleochroism
None
none.
Dispersion
-0.04
0.005
1
👆🏻
Transparency
Transparent
-
Refractive Index
1.658-1.6732.08-2.16
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
Isometric
Birefringence
0.010-0.011-9999
0
0.296
👆🏻
Clarity
Transparent
-
Physical
Neurological
-
-
Cardiovascular
Supports heart health
-
Respiratory
-
Poor
Reproductive
-
-
Digestive
-
-
Psychology
-
Vitality
Healing
Emotional healing
Emotional healing
Qualities Associated
Peace
Protection