1 Astrology
1.1 Origin
1.2 Color
Blue, Yellow, Brown, gray, Reddish, Greenish
Brown, Brownish, Yellow, Black, Reddish
1.3 Streak
1.4 For which Rashi?
Not Available
Not Available
1.5 Planet
Not Available
Not Available
1.6 Element of Planets
polyatomic nonmetal
Not Available
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
Not Available
1.8 Energy
Not Available
Not Available
1.9 Deities
Not Available
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1.10 Not to wear with
Not Available
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1.11 Powers
Not Available
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1.12 Birthstone
1.12.1 Planetary
Not Available
Not Available
1.12.2 Talisman
Not Available
Not Available
2 Physical Properties
2.1 Tenacity
2.2 Solubility
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
Not Available3.7-3.8
1
7.18
2.5 Fracture
(e.g. graphite).
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
2.6 Cleavage
{???} Imperfect, {???} Imperfect
Distinct on {010}
2.7 Mohs Hardness
2.8 Chemical Composition
Not Available
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Not Available
X = colorless; Y = pale yellow; Z = golden yellow
3.3 Dispersion
3.4 Transparency
Not Available
Blue Chart Gem Identification (2010) More from other references
3.5 Refractive Index
Not Available1.736-1.762
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
Not Available0.009-0.015
0
0.296
3.9 Clarity
Not Available
Blue Chart Gem Identification (2010) More from other references
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
Not Available
4.1.2 Cardiovascular
Not Available
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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
Not Available
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4.2 Psychology
Not Available
Not Available
4.3 Healing
Not Available
Not Available
4.4 Qualities Associated
Not Available
Not Available