Origin
Southern and central Africa
Brazil, Southern and central Africa, Sri Lanka
Color
Brown, White, Greenish, gray, Green, Brownish
Red, gray
Streak
gray
Red, Black
For which Rashi?
-
-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
Insoluble in acids
Durability
-
-
Specific Gravity
2.9-3.54.20-4.30
1
7.18
👆🏻
Fracture
Conchoidal
Uneven, Conchoidal
Cleavage
{110} Perfect, {???} Distinct, {???} Distinct
{110} good, 100 moderate, parting on {092} and {011}
Mohs Hardness
5.5-66-6.5
2
10
👆🏻
Chemical Composition
(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous, Pearly
Adamantine
Pleochroism
-
Weak to distinct brownish red-green-yellow
Dispersion
0.010.33
0.005
1
👆🏻
Transparency
Transparent
Transparent, Translucent
Refractive Index
1.603-1.6902.609-2.903
1
3.25
👆🏻
Optic Character
Biaxial/+
-
Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
tetragonal
Birefringence
-99990.296
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
Enhances brain function
-
Cardiovascular
Supports heart health
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Peace
Clarity
Healing
Emotional healing
Physical healing
Qualities Associated
Self-discovery
Awareness