Origin
Sri Lanka, Southern and central Africa
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Color
Blue
Brown, Colorless, Brownish, Black, Green, Greenish
Streak
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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
3.95-4.105.5-6.0
1
7.18
👆🏻
Fracture
-
Conchoidal
Cleavage
None
{001} Distinct
Mohs Hardness
96.5
2
10
👆🏻
Chemical Composition
Al 2O 3Ulrich Henn and Claudio C.
ZrO 2Arthur Thomas , Gemstones (2009)
Luster
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Adamantine
Pleochroism
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DistinctArthur Thomas
Dispersion
0.020.04
0.005
1
👆🏻
Transparency
Transparent, Translucent
Transparent
Refractive Index
1.757-1.7802.13-2.20
1
3.25
👆🏻
Optic Character
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Crystal System
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Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/c
Birefringence
0.007-0.0100.07
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
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Cardiovascular
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Respiratory
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Good
Reproductive
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Digestive
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Psychology
Intuition
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Healing
Emotional healing
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Qualities Associated
Creativity
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