Origin
Pakistan, Tanzania
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Color
Brown, gray, Green, Blue, rose, Red
Blue, Green
Streak
White, Colorless
Blue
For which Rashi?
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Sagittarius, Capricorn
Planet
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Venus
Element of Planets
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Water
Energy
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-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
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Psychic Power
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
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Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.20-3.503.70-3.90
1
7.18
👆🏻
Fracture
Uneven, Conchoidal, Even
Conchoidal
Cleavage
Perfect {010} imperfect {100}
Perfect on {011}, fair on {100}, poor on {110}
Mohs Hardness
6-73.5-4
2
10
👆🏻
Chemical Composition
Ca2Al3(SiO4)3(OH)
Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous
Pleochroism
X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green
Visible shades of blue
Dispersion
0.020.03
0.005
1
👆🏻
Transparency
Transparent, Translucent, Opaque . May be translucent in thin backlit sections.
Transparent, Translucent
Refractive Index
1.685-1.7071.720-1.850
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
monoclinic
Birefringence
0.006-0.0180.108
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
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Enhances mental clarity and focus
Cardiovascular
Supports heart health
Supports heart health
Respiratory
Excellent
Excellent
Reproductive
Supports reproductive health
Supports reproductive health
Digestive
-
-
Psychology
Transformation
Insight
Healing
Emotional healing
Emotional healing
Qualities Associated
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Insight