1 Astrology
1.2 Origin
Southern and central Africa
Canada, Southern and central Africa, Italy, Australia, India
1.5 Color
Blue, Green, Colorless
Violet, Brownish, Yellow, Reddish, Pale pink
1.8 Streak
1.11 For which Rashi?
1.14 Planet
Not Available
Mercury, Jupiter
1.17 Element of Planets
1.20 Energy
1.22 How to Wear?
1.22.1 Finger
Not Available
Not Available
1.23.1 Ring Metal
Not Available
Not Available
1.26 Deities
1.29 Not to wear with
Not Available
Not Available
1.32 Powers
Not Available
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1.34 Birthstone
1.34.1 Planetary
1.34.4 Talisman
Not Available
Not Available
4 Physical Properties
4.1 Tenacity
Not Available
Not Available
4.4 Solubility
Not Available
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4.7 Durability
Not Available
Not Available
4.9 Specific Gravity
2.64-2.702.69-2.79
1
7.18
4.10 Fracture
(e.g. graphite).
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
4.11 Cleavage
{010} Perfect
Poor on {0001}
4.14 Mohs Hardness
Not Available5.5-6.5
2
10
4.19 Chemical Composition
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
5 Optical Properties
5.1 Luster
Vitreous, Pearly
Vitreous
5.2 Pleochroism
Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael OâDonoghue
Weak
6.2 Dispersion
7.10 Transparency
7.11 Refractive Index
1.560-1.6401.607-1.612
1
3.25
7.18 Optic Character
Not Available
Not Available
7.19 Crystal System
7.20 Birefringence
9.8 Clarity
10 Benefits
10.1 Physical
10.1.1 Neurological
Not Available
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10.1.2 Cardiovascular
Not Available
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10.1.3 Respiratory
Not Available
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10.1.4 Reproductive
Not Available
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10.1.5 Digestive
Not Available
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10.2 Psychology
Not Available
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10.3 Healing
Not Available
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10.4 Qualities Associated
Not Available
Not Available