Origin
Switzerland
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Color
Brown, Brownish, Yellow, Black, Reddish
Blue, gray, Black
Streak
White, gray
Blue
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
Brittle
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Solubility
-
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Durability
-
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Specific Gravity
3.7-3.83-3.15
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Conchoidal
Cleavage
Distinct on {010}
Good on [110] and on [001]
Mohs Hardness
7-7.56.0-6.5
2
10
👆🏻
Chemical Composition
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
[ ]Na2(Mg3Al2)Si8O22(OH)2
Luster
Resinous
Vitreous, Pearly
Pleochroism
X = colorless; Y = pale yellow; Z = golden yellow
Strong
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.736-1.7621.606-1.637
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
monoclinic
Birefringence
0.009-0.015-9999
0
0.296
👆🏻
Clarity
-
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Physical
Neurological
Enhances mental clarity and focus
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Cardiovascular
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Respiratory
Good
Good
Reproductive
-
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Digestive
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Psychology
Protection
Communication
Healing
Physical healing
Emotional healing
Qualities Associated
Protection
Peace