Origin
Sri Lanka
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Color
Red, Blue, Green, Brown, Black
Colorless, gray, White
Streak
White
White
For which Rashi?
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-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
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Ring Metal
-
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Deities
-
-
Not to wear with
-
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Powers
-
-
Birthstone
Planetary
-
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Talisman
-
-
Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.63-3.92.33-2.37
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
ConchoidalWalter Schumann
Cleavage
Indistinct
Perfect on {010}, good on {100}
Mohs Hardness
7.5-87.5
2
10
👆🏻
Chemical Composition
(Mg,Fe2+ )Al 2O 4Gemdat.org , Management Team (2012) More from other references
Be 2BO 3(OH)Ulrich Henn and Claudio C.
Luster
Vitreous
Vitreous
Pleochroism
Absent
-
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Transparent, Translucent
Transparent
Refractive Index
1.770-1.7801.543-1.631
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
Orthorhombic
Birefringence
-99990.071-0.074
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
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Cardiovascular
Supports heart health
Supports heart health
Respiratory
Good
Excellent
Reproductive
-
-
Digestive
-
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Psychology
Creativity
Clarity
Healing
Emotional healing
Emotional healing
Qualities Associated
Emotional Healing
Clarity