Origin
Sri Lanka
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Color
Red, Blue, Green, Brown, Black
Brown, Blue, Green, Yellow, White
Streak
White
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
3.63-3.93.32-3.43
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Conchoidal
Cleavage
Indistinct
Poor on {110} and {100} very poor on {001}
Mohs Hardness
7.5-86-7
2
10
👆🏻
Chemical Composition
(Mg,Fe2+ )Al 2O 4Gemdat.org , Management Team (2012) More from other references
Ca10(Mg,Fe)2Al4(SiO4)5(Si2O7)2(OH)4
Luster
Vitreous
Vitreous, Resinous
Pleochroism
Absent
slight in colored varieties
Dispersion
0.020.03
0.005
1
👆🏻
Transparency
Transparent, Translucent
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Refractive Index
1.770-1.7801.703-1.752
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
tetragonal
Birefringence
-99990.004-0.006
0
0.296
👆🏻
Clarity
Transparent
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Physical
Neurological
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Enhances mental clarity and focus
Cardiovascular
Supports heart health
Supports heart health
Respiratory
Good
Good
Reproductive
-
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Digestive
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Psychology
Creativity
Transformation
Healing
Emotional healing
Emotional healing
Qualities Associated
Emotional Healing
Transformation