1 Astrology
1.1 Origin
Southern and central Africa
Afghanistan, China, Madagascar, Southern and central Africa, Pakistan, Sri Lanka, USA
1.2 Color
Red, Blue, Green, Reddish, Brown
Red, Reddish, orange, Brown
1.3 Streak
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
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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
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2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
3.79-3.944.12-4.18
1
7.18
2.5 Fracture
Lamellar, Splintery
ConchoidalArthur Thomas, Conchoidal, Brittle
2.6 Cleavage
{100} Good, {001} Good, {010} Poor
{???} Distinct
2.7 Mohs Hardness
2.8 Chemical Composition
Not Available
Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
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3.3 Dispersion
3.4 Transparency
TranslucentAnthony et al, Handbook of mineralogy (2001)
Gemmological Tables (2004) More from other references
3.5 Refractive Index
1.670-1.7341.789-1.820
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
Not Available0.027
0
0.296
3.9 Clarity
TranslucentAnthony et al
TransparentUlrich Henn and Claudio C. Milisenda
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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