1 Astrology
1.1 Origin
Spain, Southern and central Africa
Canada
1.2 Color
White, White, gray, Reddish, Brownish, gray
Yellow, Reddish, Brown, Brownish, Green, gray, Colorless
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
2.2 Solubility
Poorly soluble in dilute HCl
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2.3 Durability
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2.4 Specific Gravity
2.80-2.952.72-2.83
1
7.18
2.5 Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
2.6 Cleavage
Perfect on {10 1 1}, rhombohedral cleavage
Good on {100} and {110}
2.7 Mohs Hardness
2.8 Chemical Composition
CaMg(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Na 2(Ti,Fe)Si 4(O,F) 11Ulrich Henn and Claudio C.
3 Optical Properties
3.1 Luster
Vitreous, Pearly
Vitreous, Pearly
3.2 Pleochroism
NilArthur Thomas
Weak; O = colorless to yellow; E = colorless to honey-yellow
3.3 Dispersion
3.4 Transparency
Transparent, Translucent
Transparent, Translucent
3.5 Refractive Index
1.498-1.6811.610-1.647
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
3.9 Clarity
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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