Origin
Austria
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Color
Brown, Green, Brownish, Black, Yellow, gray
Black, Blue, Yellow, Green
Streak
White
Grey, Greenish, Brown
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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Brittle
Solubility
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Durability
-
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Specific Gravity
3.25-3.503.28-3.44
1
7.18
👆🏻
Fracture
Conchoidal, Fibrous
Uneven, Splintery
Cleavage
{001} perfect and {100} imperfect
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
Mohs Hardness
6-75.0-6.0
2
10
👆🏻
Chemical Composition
CaAl 2(Fe3+ ,Al)Si 3O 12(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Na2Fe2+3Fe3+2Si8O22(OH)2
Luster
Vitreous, Resinous
Vitreous, Silky
Pleochroism
Strong
X = blue
Dispersion
0.030.02
0.005
1
👆🏻
Transparency
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Refractive Index
1.729-1.7681.680-1.698
1
3.25
👆🏻
Optic Character
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Crystal System
monoclinic
monoclinic
Birefringence
0.019-0.0460.005-0.008
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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Physical
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
Calms digestive issues
Supports heart health
Respiratory
Good
Good
Reproductive
Supports healthy digestion
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Digestive
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Psychology
Abundance
Empowerment
Healing
Physical healing
Emotional healing
Qualities Associated
Manifestation
Clear Thinking