Origin
Southern and central Africa
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Color
Black, Brownish, White, Brown
Colorless, Yellow, Brown, Green, Red, Reddish
Streak
Reddish, Black
White, Yellow, Colorless
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
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Birthstone
Planetary
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Talisman
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Tenacity
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Brittle
Solubility
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Durability
-
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Specific Gravity
4.76-5.033.0-3.1
1
7.18
👆🏻
Fracture
Conchoidal
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Cleavage
None
Perfect on {001}
Mohs Hardness
5.5-6.53.5
2
10
👆🏻
Chemical Composition
(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Ca(Mg,Al)3(Al3Si)O10(OH)2
Luster
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Vitreous, Pearly
Pleochroism
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X = colorless
Dispersion
0.030.02
0.005
1
👆🏻
Transparency
Translucent
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Refractive Index
-99991.643-1.648
1
3.25
👆🏻
Optic Character
-
-
Crystal System
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monoclinic
Birefringence
-99990.012-0.015
0
0.296
👆🏻
Clarity
Translucent
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Physical
Neurological
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Cardiovascular
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Respiratory
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Poor
Reproductive
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Digestive
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Psychology
Insight
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Healing
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Emotional healing
Qualities Associated
Grounding
Creativity