Origin
China, Canada
Switzerland
Color
Green, Yellow, Brown, White, gray, Black
Brown, Brownish, Yellow, Black, Reddish
Streak
-
White, gray
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
2.90-3.103.7-3.8
1
7.18
👆🏻
Fracture
Splintery, Granular
Subconchoidal, Conchoidal
Cleavage
None
Distinct on {010}
Mohs Hardness
6-6.57-7.5
2
10
👆🏻
Chemical Composition
Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
Luster
Vitreous, Greasy
Resinous
Pleochroism
None
X = colorless; Y = pale yellow; Z = golden yellow
Dispersion
0.010.02
0.005
1
👆🏻
Transparency
Translucent
-
Refractive Index
1.600-1.6271.736-1.762
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
monoclinic
Birefringence
0.0270.009-0.015
0
0.296
👆🏻
Clarity
Translucent
-
Physical
Neurological
Aids in mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Emotional Balance
Protection
Healing
Physical healing
Physical healing
Qualities Associated
Healing
Protection