Origin
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Ethiopia, Afghanistan, China, Australia, Origins: Brazil (major source); also found in USA, Germany, France, UK, Finland, Norway, Sweden, Namibia, Zaire, China and Australia.
Color
Black, Blue, Yellow, Green
Brown, Green, White, Colorless, Yellow, Blue, gray, pink, Greenish
Streak
Grey, Greenish, Brown
White
For which Rashi?
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-
Planet
-
-
Element of Planets
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-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
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Not to wear with
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-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.28-3.442.98-3.10
1
7.18
👆🏻
Fracture
Uneven, Splintery
Sub-Conchoidal, Irregular/uneven, Uneven, Conchoidal
Cleavage
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
[100] Perfect, [110] Good, [011] Distinct
Mohs Hardness
5.0-6.06
2
10
👆🏻
Chemical Composition
Na2Fe2+3Fe3+2Si8O22(OH)2
(Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
Vitreous, Silky
Vitreous, Pearly
Pleochroism
X = blue
weak to none
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.680-1.6981.578-1.646
1
3.25
👆🏻
Optic Character
-
Biaxial/+
Crystal System
monoclinic
Triclinic
Birefringence
0.005-0.0080.020-0.030
0
0.296
👆🏻
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
Supports heart health
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Respiratory
Good
Excellent
Reproductive
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Supports reproductive health
Digestive
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Psychology
Empowerment
Peace
Healing
Emotional healing
Emotional healing
Qualities Associated
Clear Thinking
Peace