Origin
Switzerland
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Color
Brown, Brownish, Yellow, Black, Reddish
Black, Blue, Yellow, Green
Streak
White, gray
Grey, Greenish, Brown
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
Brittle
Solubility
-
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Durability
-
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Specific Gravity
3.7-3.83.28-3.44
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Uneven, Splintery
Cleavage
Distinct on {010}
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
Mohs Hardness
7-7.55.0-6.0
2
10
👆🏻
Chemical Composition
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
Na2Fe2+3Fe3+2Si8O22(OH)2
Luster
Resinous
Vitreous, Silky
Pleochroism
X = colorless; Y = pale yellow; Z = golden yellow
X = blue
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.736-1.7621.680-1.698
1
3.25
👆🏻
Optic Character
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Crystal System
monoclinic
monoclinic
Birefringence
0.009-0.0150.005-0.008
0
0.296
👆🏻
Clarity
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Physical
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
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Supports heart health
Respiratory
Good
Good
Reproductive
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Digestive
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Psychology
Protection
Empowerment
Healing
Physical healing
Emotional healing
Qualities Associated
Protection
Clear Thinking