Origin
Southern and central Africa
Brazil, Kenya, Madagascar, Mozambique, Sri Lanka
Color
Brown, Green, gray, White
Red
Streak
gray, White
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For which Rashi?
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Taurus
Planet
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Mars
Element of Planets
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-
Energy
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-
How to Wear?
Finger
-
-
Ring Metal
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-
Deities
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Venus
Not to wear with
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-
Powers
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Love
Birthstone
Planetary
-
-
Talisman
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-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.15-3.2593.84
1
7.18
👆🏻
Fracture
-
Conchoidal
Cleavage
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
none, may show indistinct parting
Mohs Hardness
5.5-67-7.5
2
10
👆🏻
Chemical Composition
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
(Mg,Fe)3Al2Si3O12
Luster
Vitreous
Greasy, Vitreous
Pleochroism
Weak to moderate
None
Dispersion
0.020.03
0.005
1
👆🏻
Transparency
Transparent
-
Refractive Index
1.625-1.7181.760
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
cubic
Birefringence
-99990.010-0.014
0
0.296
👆🏻
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
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Cardiovascular
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Respiratory
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Good
Reproductive
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-
Digestive
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Psychology
Focus
Inspiration
Healing
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Emotional healing
Qualities Associated
Protection
Inspiration