1 Astrology
1.1 Origin
Madagascar, Sri Lanka
Switzerland
1.2 Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Green, Colorless, White, Brown, gray
1.3 Streak
1.4 For which Rashi?
Not Available
Not Available
1.5 Planet
Not Available
Not Available
1.6 Element of Planets
Not Available
Not Available
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
Not Available
1.8 Energy
Not Available
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1.9 Deities
Not Available
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1.10 Not to wear with
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1.11 Powers
Not Available
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1.12 Birthstone
1.12.1 Planetary
Not Available
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1.12.2 Talisman
Not Available
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2 Physical Properties
2.1 Tenacity
2.2 Solubility
Not Available
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2.3 Durability
Not Available
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2.4 Specific Gravity
2.5 Fracture
Not Available
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
2.6 Cleavage
Not Available
Perfect on {110} at 56° and 124°; partings on {010} and {100}
2.7 Mohs Hardness
2.8 Chemical Composition
(Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)
Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.
3 Optical Properties
3.1 Luster
Not Available
Vitreous, Silky
3.2 Pleochroism
Not Available
Not Available
3.3 Dispersion
1.13 Transparency
Gemmological Tables (2004)
Transparent
1.14 Refractive Index
1.15 Optic Character
Not Available
Not Available
1.16 Crystal System
1.17 Birefringence
Not Available0.023-0.028
0
0.296
1.18 Clarity
Gemmological Tables (2004)
Transparent
2 Benefits
2.1 Physical
2.1.1 Neurological
Not Available
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2.1.2 Cardiovascular
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2.1.3 Respiratory
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2.1.4 Reproductive
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2.1.5 Digestive
Not Available
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2.2 Psychology
Not Available
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2.3 Healing
Not Available
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2.4 Qualities Associated
Not Available
Not Available