Origin
Brazil, Madagascar, Zimbabwe, Russia, Sri Lanka, India, Burma, Origins: Brazil
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Color
Greenish, Green, Brownish, Red, Blue, Brown, gray
Blue, Green
Streak
White
Blue
For which Rashi?
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-
Planet
-
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Element of Planets
Earth, Water
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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
Healing
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Birthstone
Planetary
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Talisman
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Tenacity
Brittle
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Solubility
-
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Durability
-
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Specific Gravity
3.69-3.813.80-4.15
1
7.18
👆🏻
Fracture
Uneven, Conchoidal to uneven, ConchoidalWalter Schumann
Uneven
Cleavage
Distinct on {110}, imperfect on {010}, poor on {001}
perfect along [010] and [100]
Mohs Hardness
8.53.5-4
2
10
👆🏻
Chemical Composition
BeAl 2 O 4
Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Silky
Pleochroism
X = red; Y = yellow-orange; Z = emerald-green
X = very pale blue; Y = pale blue; Z = deep blue
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Transparent, Translucent, Transparent to translucent
Translucent
Refractive Index
1.746-1.7631.752-1.815
1
3.25
👆🏻
Optic Character
Biaxial/+
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Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.007-0.0130.063
0
0.296
👆🏻
Clarity
Transparent
Translucent
Physical
Neurological
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Cardiovascular
Supports heart health
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Respiratory
Good
Good
Reproductive
-
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Digestive
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Psychology
Transformation
Communication
Healing
Physical healing
Emotional healing
Qualities Associated
Transformation
Communication