Origin
Southern and central Africa
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Color
Brown, Green, gray, White
Green, Yellow, Brown, White, Colorless, Blue, Brownish, Black
Streak
gray, White
White
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
-
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Solubility
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insoluble
Durability
-
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Specific Gravity
3.15-3.2592.36
1
7.18
👆🏻
Fracture
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Uneven, Subconchoidal, Fibrous
Cleavage
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
[110] perfect, [101] good, [010] distinct
Mohs Hardness
5.5-63.5-4
2
10
👆🏻
Chemical Composition
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Al 3(PO 4) 2(OH,F) 3 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous, Resinous, Pearly
Pleochroism
Weak to moderate
Weak
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Transparent
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Refractive Index
1.625-1.7181.518-1.561
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
-99990.025
0
0.296
👆🏻
Clarity
Transparent
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Physical
Neurological
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Cardiovascular
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Supports heart health
Respiratory
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Reproductive
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Digestive
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Psychology
Focus
Clarity
Healing
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Emotional healing
Qualities Associated
Protection
Clarity