Origin
India
Southern and central Africa
Color
Blue, Greenish
Colorless, Blue, Green
Streak
Blue, 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
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Solubility
-
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Durability
-
-
Specific Gravity
2.25-2.333.07-3.13
1
7.18
👆🏻
Fracture
-
Conchoidal, Uneven
Cleavage
Good on {010}
{100} Perfect, {010} Distinct, {102} Distinct
Mohs Hardness
3-43-3.5
2
10
👆🏻
Chemical Composition
Ca(VO)Si4O10•4(H2O)
Zn 2(Fe2+ ,Mn2+ )(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Pearly
-
Pleochroism
Visible: X=Z= colorless Y= blue
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Dispersion
0.040.03
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.5421.595-1.621
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
-
Birefringence
0.0090.021
0
0.296
👆🏻
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
Enhances mental clarity and focus
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Cardiovascular
Supports heart health
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Respiratory
Good
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Reproductive
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Digestive
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Psychology
Communication
Emotional healing
Healing
Emotional healing
Emotional healing
Qualities Associated
Communication
Emotional Healing