1 Astrology
1.1 Origin
Switzerland
Southern and central Africa
1.2 Color
Brown, Brownish, Yellow, Black, Reddish
Yellow, Green
1.3 Streak
1.4 For which Rashi?
Not Available
Not Available
1.5 Planet
Not Available
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1.6 Element of Planets
Not Available
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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
Not Available
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1.9 Deities
Not Available
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1.10 Not to wear with
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1.11 Powers
Not Available
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1.12 Birthstone
1.12.1 Planetary
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1.12.2 Talisman
Not Available
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2 Physical Properties
2.1 Tenacity
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, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Uneven, Conchoidal, Uneven, Conchoidal, Gemstones of the world (2001)
2.6 Cleavage
Distinct on {010}
two or three
2.7 Mohs Hardness
2.8 Chemical Composition
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
Not Available
3 Optical Properties
3.1 Luster
3.2 Pleochroism
X = colorless; Y = pale yellow; Z = golden yellow
None
3.3 Dispersion
3.4 Transparency
Blue Chart Gem Identification (2010) More from other references
Transparent, Translucent
3.5 Refractive Index
1.736-1.7621.518-1.570
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
monoclinic
Triclinic or monoclinic
3.8 Birefringence
0.009-0.0150.008-0.010
0
0.296
3.9 Clarity
Blue Chart Gem Identification (2010) More from other references
Transparent
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
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4.1.2 Cardiovascular
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4.1.3 Respiratory
Not Available
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4.1.4 Reproductive
Not Available
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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
Not Available
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