1 Astrology
1.1 Origin
Canada, USA, Tanzania, Norway
Not Available
1.2 Color
Red, Yellow, Brown, Yellow, Red, pink, Green
Green, Yellow, Brown, White, Colorless, Blue, Brownish, Black
1.3 Streak
1.4 For which Rashi?
1.5 Planet
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
1.9 Deities
Not Available
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1.10 Not to wear with
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1.11 Powers
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
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2.2 Solubility
2.3 Durability
Not Available
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2.4 Specific Gravity
2.5 Fracture
Gemstones of the world (2001)
Uneven, Subconchoidal, UnevenArthur Thomas, Fibrous
2.6 Cleavage
001
[110] perfect, [101] good, [010] distinct
2.7 Mohs Hardness
2.8 Chemical Composition
Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
Al 3(PO 4) 2(OH,F) 3 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
3 Optical Properties
3.1 Luster
Vitreous
Vitreous, Resinous, Pearly
3.2 Pleochroism
Weak or absentWalter Schumann
Weak
3.3 Dispersion
3.4 Transparency
Transparent, Translucent, Transparent to translucent
Gems
3.5 Refractive Index
1.53-1.551.518-1.561
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
3.9 Clarity
Transparent to translucent
Gems
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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