Origin
Tanzania, Madagascar, Kenya, Sri Lanka, Burma, Australia
USA
Color
Green, Brown, Colorless, Greenish, Yellow
Brown, Red, Black, Brownish
Streak
White
Reddish, Brown
For which Rashi?
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-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
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Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.25-3.455.05-5.22
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Uneven
Cleavage
Good on {110}
None
Mohs Hardness
6.55.5-6
2
10
👆🏻
Chemical Composition
Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
(Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous
-
Pleochroism
X = colorless to green; Y = colorless
-
Dispersion
0.020.19
0.005
1
👆🏻
Transparency
-
Translucent
Refractive Index
1.660-1.685-9999
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m
Birefringence
0.012-0.017-9999
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent
Physical
Neurological
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Cardiovascular
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Respiratory
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Reproductive
-
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Digestive
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Psychology
Harmony
Creativity
Healing
Emotional healing
-
Qualities Associated
Self-worth
Grounding