1 Astrology
1.1 Origin
Canada, Southern and central Africa
Not Available
1.2 Color
Green, Green, Yellow, Red
Yellow, Black
1.3 Streak
1.4 For which Rashi?
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1.5 Planet
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1.6 Element of Planets
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1.7 How to Wear?
1.7.1 Finger
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1.8.1 Ring Metal
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2.2 Energy
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2.4 Deities
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2.5 Not to wear with
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2.7 Powers
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2.8 Birthstone
2.8.1 Planetary
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2.8.2 Talisman
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3 Physical Properties
3.1 Tenacity
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3.2 Solubility
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3.3 Durability
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3.4 Specific Gravity
3.5 Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
ConchoidalGemdat.org, Uneven
3.7 Cleavage
{101} Distinct
{111} Indistinct, {111} Indistinct, {111} Indistinct
3.9 Mohs Hardness
3.13 Chemical Composition
ThCa 2Si 8O 20Walter Schumann , Gemstones of the world (2001) More from other references
Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
4 Optical Properties
4.1 Luster
4.2 Pleochroism
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4.3 Dispersion
5.5 Transparency
5.6 Refractive Index
1.593-1.5961.80-1.83
1
3.25
5.7 Optic Character
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5.8 Crystal System
Tetragonal Trapezohedral H-M Symbol (4 2 2) Space Group: I 422
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m
5.9 Birefringence
0.001Not Available
0
0.296
5.10 Clarity
6 Benefits
6.1 Physical
6.1.1 Neurological
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6.1.2 Cardiovascular
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6.1.3 Respiratory
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6.1.4 Reproductive
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6.1.5 Digestive
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6.2 Psychology
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6.3 Healing
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6.4 Qualities Associated
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