Origin
Southern and central Africa
Southern and central Africa
Color
Brownish, Red, orange
Greenish, Blue, Colorless, Green, Yellow
Streak
White
Greenish, gray
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
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Solubility
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Durability
-
-
Specific Gravity
4.00-4.033.17-3.24
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
Distinct
(0001) indistinct
Mohs Hardness
7.5-89-9.5
2
10
👆🏻
Chemical Composition
CaZrBAl 9O 18Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SiCArthur Thomas , Gemstones (2009)
Luster
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Adamantine
Pleochroism
Strong dichroism: yellow-brown red to brown-violet (pinkish samples: nearly colorless pale orangy-pink)Herve Nicolas Lazzarelli
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Dispersion
0.020.10
0.005
1
👆🏻
Transparency
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-
Refractive Index
1.787-1.8162.648-2.691
1
3.25
👆🏻
Optic Character
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-
Crystal System
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6H polytype
Birefringence
0.0290.043
0
0.296
👆🏻
Clarity
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TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
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Cardiovascular
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Respiratory
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Reproductive
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Digestive
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Psychology
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Clarity
Healing
Physical healing
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Qualities Associated
Transformation
Creativity