1 Astrology
1.1 Origin
1.2 Color
Brownish, Black, Reddish, Brown, Blue
Green, Brown
1.3 Streak
Reddish, Brown
Not Available
1.4 For which Rashi?
1.5 Planet
1.6 Element of Planets
1.7 How to Wear?
1.7.1 Finger
Not Available
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1.7.2 Ring Metal
Not Available
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1.8 Energy
1.9 Deities
1.10 Not to wear with
Not Available
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1.11 Powers
Not Available
Courage, Protection
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
Not Available
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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
Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Not Available
2.6 Cleavage
{0001} good, {10 1 0} parting
Not Available
2.7 Mohs Hardness
2.8 Chemical Composition
(Ca,Ce)(Al,Ti,Mg)12O19
(Mg,Fe) 2Si 2O 6Ulrich Henn and Claudio C.
3 Optical Properties
3.1 Luster
3.2 Pleochroism
O = brownish gray; E = gray
Not Available
3.3 Dispersion
3.4 Transparency
Handbook of mineralogy (2001)
Transparent, Translucent
3.5 Refractive Index
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
Not Available0.014
0
0.296
3.9 Clarity
Handbook of mineralogy (2001)
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
Not Available
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4.3 Healing
Not Available
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4.4 Qualities Associated
Not Available
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