Origin
Australia
Southern and central Africa
Color
Blue, Green, Greenish, Black
Brown, Green, gray, White
Streak
Grey, gray
gray, 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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Durability
-
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Specific Gravity
4.00-4.623.15-3.259
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
-
Cleavage
Indistinct parting on [111]
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
Mohs Hardness
7.5-85.5-6
2
10
👆🏻
Chemical Composition
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous
Vitreous
Pleochroism
-
Weak to moderate
Dispersion
0.030.02
0.005
1
👆🏻
Transparency
-
Transparent
Refractive Index
1.790-1.8181.625-1.718
1
3.25
👆🏻
Optic Character
-
-
Crystal System
cubic
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Physical
Neurological
Enhances mental clarity and focus
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Cardiovascular
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Respiratory
Aids in digestion and soothes the stomach
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Reproductive
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Digestive
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Psychology
Protection
Focus
Healing
Emotional healing
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Qualities Associated
Harmony
Protection