1 Astrology
1.1 Origin
Brazil, Southern and central Africa
Czech, Mexico, Australia
1.2 Color
Blue, Green, Black
Red, Colorless, Violet, Red, pink
1.3 Streak
1.4 For which Rashi?
Gemini, Sagittarius, Gemini, Sagittarius, Gemini, Sagittarius
Not Available
1.5 Planet
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
1.9 Deities
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
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2.3 Durability
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2.4 Specific Gravity
2.5 Fracture
Uneven, Uneven, Gemstones of the world (2001) More from other references
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
2.6 Cleavage
{001} Indistinct, {???} Indistinct
Perfect on {010}; poor on {100} and { 1 02}.
2.7 Mohs Hardness
2.8 Chemical Composition
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Co3(AsO4)2•8(H2O)
3 Optical Properties
3.1 Luster
Not Available
Subadamantine, Pearly
3.2 Pleochroism
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
Visible: X = pale pinkish to pale rose; Y = pale violet to pale violet-rose; Z = deep red
3.3 Dispersion
3.4 Transparency
Transparent, Translucent
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3.5 Refractive Index
1.604-1.6461.626-1.629
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
0.031-0.036Not Available
0
0.296
3.9 Clarity
Transparent
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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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