Origin
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Madagascar, Southern and central Africa
Color
Blue, Green
Grey, Brownish, Blue, Colorless, White, gray, Reddish
Streak
Blue
White
For which Rashi?
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-
Planet
-
-
Element of Planets
-
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Energy
-
-
How to Wear?
Finger
-
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Ring Metal
-
-
Deities
-
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Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
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Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.80-4.152.54-2.61
1
7.18
👆🏻
Fracture
Uneven
Uneven
Cleavage
perfect along [010] and [100]
{001} Perfect, {010} Good
Mohs Hardness
3.5-46
2
10
👆🏻
Chemical Composition
Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Silky
-
Pleochroism
X = very pale blue; Y = pale blue; Z = deep blue
-
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
Translucent
Transparent
Refractive Index
1.752-1.8151.518-1.536
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
-
Birefringence
0.0630.005-0.008
0
0.296
👆🏻
Clarity
Translucent
Transparent
Physical
Neurological
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Cardiovascular
-
-
Respiratory
Good
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Reproductive
-
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Digestive
-
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Psychology
Communication
Creativity
Healing
Emotional healing
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Qualities Associated
Communication
Creativity