Origin
Mexico
Southern and central Africa
Color
Colorless, White, Greenish, Brown
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
Flexible
Brittle
Solubility
Soluble
-
Durability
-
-
Specific Gravity
2.20-2.404.5-4.8
1
7.18
👆🏻
Fracture
Conchoidal, Splintery, Fibrous
Uneven
Cleavage
Perfect on {010}, distinct on {100}
None, parting may develop along {111}
Mohs Hardness
25.5
2
10
👆🏻
Chemical Composition
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
Fe++Cr2O4
Luster
Vitreous, Silky, Pearly, Waxy
-
Pleochroism
None
none.
Dispersion
0.010.04
0.005
1
👆🏻
Transparency
Transparent, Translucent
-
Refractive Index
1.521-1.5312.08-2.16
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Isometric
Birefringence
0.010-9999
0
0.296
👆🏻
Clarity
Transparent
-
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
Poor
Reproductive
-
-
Digestive
-
-
Psychology
Harmony
Vitality
Healing
Emotional healing
Emotional healing
Qualities Associated
Harmony
Protection