Origin
Southern and central Africa
Australia
Color
Brown, Green, gray, White
Brown, Reddish, Brownish, Yellow
Streak
gray, White
Brown, Brownish, Yellow
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
-
-
Solubility
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HCl soluble
Durability
-
-
Specific Gravity
3.15-3.2594.27-4.29
1
7.18
👆🏻
Fracture
-
Uneven
Cleavage
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
Perfect {010}
Mohs Hardness
5.5-65-5.5
2
10
👆🏻
Chemical Composition
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
FeO(OH)Arthur Thomas , Gemstones (2009)
Luster
Vitreous
Adamantine
Pleochroism
Weak to moderate
VisibleArthur Thomas
Dispersion
0.020.05
0.005
1
👆🏻
Transparency
Transparent
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Refractive Index
1.625-1.7182.26-2.398
1
3.25
👆🏻
Optic Character
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-
Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Orthorhombic
Birefringence
-99990.138
0
0.296
👆🏻
Clarity
Transparent
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Physical
Neurological
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Cardiovascular
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Respiratory
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Reproductive
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Digestive
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Psychology
Focus
Creativity
Healing
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Emotional healing
Qualities Associated
Protection
Emotional Healing