Origin
Madagascar
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Color
Brownish, Black, Reddish, Brown, Blue
Blue, Green
Streak
Reddish, Brown
Blue
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
-
-
Birthstone
Planetary
-
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Talisman
-
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Tenacity
-
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Solubility
-
-
Durability
-
-
Specific Gravity
3.843.80-4.15
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Uneven
Cleavage
{0001} good, {10 1 0} parting
perfect along [010] and [100]
Mohs Hardness
7.5-83.5-4
2
10
👆🏻
Chemical Composition
(Ca,Ce)(Al,Ti,Mg)12O19
Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Silky
Pleochroism
O = brownish gray; E = gray
X = very pale blue; Y = pale blue; Z = deep blue
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
-
Translucent
Refractive Index
1.79-1.8071.752-1.815
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Hexagonal
Orthorhombic
Birefringence
-99990.063
0
0.296
👆🏻
Clarity
-
Translucent
Physical
Neurological
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Cardiovascular
-
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Respiratory
Excellent
Good
Reproductive
-
-
Digestive
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Psychology
Empowerment
Communication
Healing
Emotional healing
Emotional healing
Qualities Associated
Balance
Communication