Origin
-
Southern and central Africa
Color
Blue, White, Grey, Yellow, Green, Colorless, Red, gray
Brownish, Red, orange
Streak
Blue, White
White
For which Rashi?
-
-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
Brittle
-
Solubility
Gelatinises in acids
-
Durability
-
-
Specific Gravity
2.4-2.54.00-4.03
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Conchoidal
Cleavage
Distinct on {110}
Distinct
Mohs Hardness
5-67.5-8
2
10
👆🏻
Chemical Composition
(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
CaZrBAl 9O 18Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Greasy
-
Pleochroism
None
Strong dichroism: yellow-brown red to brown-violet (pinkish samples: nearly colorless pale orangy-pink)Herve Nicolas Lazzarelli
Dispersion
0.010.02
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.501.787-1.816
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
-
Birefringence
-99990.029
0
0.296
👆🏻
Clarity
-
-
Physical
Neurological
Enhances mental clarity and focus
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Cardiovascular
-
-
Respiratory
Good
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Reproductive
-
-
Digestive
-
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Psychology
Communication
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Healing
Emotional healing
Physical healing
Qualities Associated
Communication
Transformation