Origin
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Southern and central Africa
Color
Black, Blue, Yellow, Green
Greenish, Blue, Colorless, Green, Yellow
Streak
Grey, Greenish, Brown
Greenish, gray
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
-
-
Birthstone
Planetary
-
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Talisman
-
-
Tenacity
Brittle
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Solubility
-
-
Durability
-
-
Specific Gravity
3.28-3.443.17-3.24
1
7.18
👆🏻
Fracture
Uneven, Splintery
Conchoidal
Cleavage
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
(0001) indistinct
Mohs Hardness
5.0-6.09-9.5
2
10
👆🏻
Chemical Composition
Na2Fe2+3Fe3+2Si8O22(OH)2
SiCArthur Thomas , Gemstones (2009)
Luster
Vitreous, Silky
Adamantine
Pleochroism
X = blue
-
Dispersion
0.020.10
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.680-1.6982.648-2.691
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
6H polytype
Birefringence
0.005-0.0080.043
0
0.296
👆🏻
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
Enhances mental clarity and focus
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Cardiovascular
Supports heart health
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Respiratory
Good
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Reproductive
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Digestive
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Psychology
Empowerment
Clarity
Healing
Emotional healing
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Qualities Associated
Clear Thinking
Creativity