Origin
Southern and central Africa
Russia
Color
Brown
Black, Violet, Blue, Green
Streak
White
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For which Rashi?
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Gemini, Virgo
Planet
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Mercury
Element of Planets
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Earth
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
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Tenacity
-
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Solubility
-
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Durability
-
-
Specific Gravity
3.25-3.283.22-3.40
1
7.18
👆🏻
Fracture
Uneven
Conchoidal
Cleavage
{100} Distinct, {001} Poor, {110} Poor
1,2 prismatic.
Mohs Hardness
6.5-75-6
2
10
👆🏻
Chemical Composition
Ca2Fe++Al2BO3Si4O12(OH)
(Ca,Cr)MgSi 2O 6Gemdat.org , Management Team (2012)
Luster
Vitreous
Vitreous
Pleochroism
Colorless
Common trichroism: light green
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Transparent
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Refractive Index
1.674-1.6931.668-1.703
1
3.25
👆🏻
Optic Character
-
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Crystal System
Triclinic Pinacoidal H-M Symbol ( 1) Space Group: P1
monoclinic
Birefringence
-99990.024-0.030
0
0.296
👆🏻
Clarity
-
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Physical
Neurological
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Cardiovascular
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Supports heart health
Respiratory
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Good
Reproductive
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Digestive
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Psychology
Grounding
Renewal
Healing
Emotional healing
Physical healing
Qualities Associated
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Love