Origin
Austria
Southern and central Africa
Color
Brown, Green, Brownish, Black, Yellow, gray
Brown, Green, gray, White
Streak
White
gray, White
For which Rashi?
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-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
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Ring Metal
-
-
Deities
-
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Not to wear with
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Powers
-
-
Birthstone
Planetary
-
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Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.25-3.503.15-3.259
1
7.18
👆🏻
Fracture
Conchoidal, Fibrous
-
Cleavage
{001} perfect and {100} imperfect
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
Mohs Hardness
6-75.5-6
2
10
👆🏻
Chemical Composition
CaAl 2(Fe3+ ,Al)Si 3O 12(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous, Resinous
Vitreous
Pleochroism
Strong
Weak to moderate
Dispersion
0.030.02
0.005
1
👆🏻
Transparency
-
Transparent
Refractive Index
1.729-1.7681.625-1.718
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Birefringence
0.019-0.046-9999
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Physical
Neurological
Enhances mental clarity and focus
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Cardiovascular
Calms digestive issues
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Respiratory
Good
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Reproductive
Supports healthy digestion
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Digestive
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Psychology
Abundance
Focus
Healing
Physical healing
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Qualities Associated
Manifestation
Protection