Origin
Brazil
Mexico
Color
Blue, Greenish
Yellow, yellowish orange
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
-
Brittle
Solubility
-
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Durability
-
-
Specific Gravity
3.313.98-4.04
1
7.18
👆🏻
Fracture
Uneven
Conchoidal
Cleavage
{110} Good
Imperfect, poor one {100}
Mohs Hardness
5.5-64.5-5
2
10
👆🏻
Chemical Composition
(Fe2+ ,Mg)Al 2(PO 4) 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
-
Vitreous
Pleochroism
Colorless blueAnthony et al
Colorless
Dispersion
0.020.03
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.639-1.6801.702-1.740
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
monoclinic
Birefringence
0.0410.060
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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Physical
Neurological
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Cardiovascular
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Respiratory
Good
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Reproductive
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Digestive
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Psychology
Communication
Creativity
Healing
Emotional healing
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Qualities Associated
Intuition & Communication
Optimism