Origin
USA, Mexico, Tanzania, Brazil, Pakistan, Afghanistan, Origins: USA
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Color
Green, Reddish, Brown, Yellow, Colorless, Blue, Violet, Grey
Blue, White, Grey, Yellow, Green, Colorless, Red, gray
Streak
White
Blue, White
For which Rashi?
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Planet
-
-
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
Solubility
-
Gelatinises in acids
Durability
-
-
Specific Gravity
3.26-3.362.4-2.5
1
7.18
👆🏻
Fracture
Conchoidal
Uneven, Conchoidal
Cleavage
Good on {100}
Distinct on {110}
Mohs Hardness
6.5-75-6
2
10
👆🏻
Chemical Composition
(Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references
(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
Luster
Vitreous
Vitreous, Greasy
Pleochroism
Strong
None
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.656-1.7041.50
1
3.25
👆🏻
Optic Character
Biaxial/+
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Crystal System
Triclinic
Isometric
Birefringence
0.009-0.012-9999
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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Physical
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
-
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Respiratory
Good
Good
Reproductive
-
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Digestive
-
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Psychology
Harmony
Communication
Healing
Emotional healing
Emotional healing
Qualities Associated
Balance
Communication