1 Astrology
1.1 Origin
India, China
Canada, Brazil, Kenya, Tanzania, Madagascar, Burma, Afghanistan
1.2 Color
Blue, Yellow, Brown, gray, Reddish, Greenish
Violet, White, gray, Brown, pink, Yellow
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
polyatomic nonmetal
Not Available
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
Not Available
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2.2 Solubility
2.3 Durability
Not Available
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2.4 Specific Gravity
Not Available2.58-2.74
1
7.18
2.5 Fracture
(e.g. graphite).
ConchoidalWalter Schumann, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Splintery
2.6 Cleavage
{???} Imperfect, {???} Imperfect
{100} Distinct, {110} Distinct
2.7 Mohs Hardness
2.8 Chemical Composition
Not Available
Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references
3 Optical Properties
3.1 Luster
Not Available
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3.2 Pleochroism
Not Available
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3.3 Dispersion
3.4 Transparency
Not Available
Gemmological Tables (2004) More from other references
3.5 Refractive Index
Not Available1.540-1.579
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
Not Available0.006-0.037
0
0.296
3.9 Clarity
Not Available
TransparentUlrich Henn and Claudio C. Milisenda
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
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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
Not Available
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