Origin
Southern and central Africa
Tanzania, Madagascar, Kenya, Sri Lanka, Burma, Australia
Color
Red, Blue, Green, Reddish, Brown
Green, Brown, Colorless, Greenish, Yellow
Streak
White
White
For which Rashi?
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Planet
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-
Element of Planets
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-
Energy
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-
How to Wear?
Finger
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Ring Metal
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Deities
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Not to wear with
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Powers
-
-
Birthstone
Planetary
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Talisman
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Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.79-3.943.25-3.45
1
7.18
👆🏻
Fracture
Lamellar, Splintery
Conchoidal, Uneven
Cleavage
{100} Good, {001} Good, {010} Poor
Good on {110}
Mohs Hardness
46.5
2
10
👆🏻
Chemical Composition
FeAs
Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Luster
Waxy
Vitreous
Pleochroism
-
X = colorless to green; Y = colorless
Dispersion
0.010.02
0.005
1
👆🏻
Transparency
TranslucentAnthony et al
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Refractive Index
1.670-1.7341.660-1.685
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
Orthorhombic
Birefringence
-99990.012-0.017
0
0.296
👆🏻
Clarity
TranslucentAnthony et al
TransparentUlrich Henn and Claudio C. Milisenda
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
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Harmony
Healing
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Emotional healing
Qualities Associated
Emotional Healing
Self-worth