1 Astrology
1.1 Origin
Not Available
Southern and central Africa
1.2 Color
Black, Blue, Yellow, Green
Green, Grey, Green, White
1.3 Streak
Grey, Greenish, Brown
White
1.4 For which Rashi?
Not Available
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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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1.7.2 Ring Metal
Not Available
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1.8 Energy
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1.9 Deities
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1.10 Not to wear with
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1.11 Powers
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1.12 Birthstone
1.12.1 Planetary
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1.12.2 Talisman
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2 Physical Properties
2.1 Tenacity
2.2 Solubility
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2.3 Durability
Not Available
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2.4 Specific Gravity
3.28-3.442.60-3.02
1
7.18
2.5 Fracture
Uneven, Splintery, Brittle
Uneven
2.6 Cleavage
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
{001} Perfect
2.7 Mohs Hardness
2.8 Chemical Composition
Not Available
(Mg,Fe2+ ) 5Al(Si 3Al)O 10(OH) 8Anthony et al , Handbook of mineralogy (2001)
3 Optical Properties
3.1 Luster
Vitreous, Silky
Pearly, Greasy
3.2 Pleochroism
X = blue
Distinct: light yellow-green to light bluE
3.3 Dispersion
3.4 Transparency
Not Available
Transparent
3.5 Refractive Index
1.680-1.6981.571-1.597
1
3.25
3.6 Optic Character
3.7 Crystal System
monoclinic
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m
3.8 Birefringence
0.005-0.008Not Available
0
0.296
3.9 Clarity
Not Available
Transparent
4 Benefits
4.1 Physical
4.1.1 Neurological
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4.1.2 Cardiovascular
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4.1.3 Respiratory
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4.1.4 Reproductive
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4.1.5 Digestive
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4.2 Psychology
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4.3 Healing
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4.4 Qualities Associated
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