1 Astrology
1.1 Origin
Mexico, USA, Spain
Southern and central Africa
1.6 Color
Green, Brown, Yellow, Red, Black
Blue
1.12 Streak
Brownish, White
Not Available
1.17 For which Rashi?
Not Available
Not Available
1.23 Planet
Not Available
Not Available
1.25 Element of Planets
Not Available
Not Available
1.28 Energy
Not Available
Not Available
1.34 How to Wear?
1.35.2 Finger
Not Available
Not Available
1.38.2 Ring Metal
Not Available
Not Available
1.43 Deities
Not Available
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1.45 Not to wear with
Not Available
Not Available
1.47 Powers
Not Available
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1.48 Birthstone
1.49.2 Planetary
Not Available
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4.2.2 Talisman
Not Available
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5 Physical Properties
6.1 Tenacity
Not Available
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6.6 Solubility
Not Available
Not Available
6.10 Durability
Not Available
Not Available
6.12 Specific Gravity
3.95-4.102.64-2.69
1
7.18
6.22 Fracture
UnevenWalter Schumann, Gemstones of the world (2001) More from other references, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Uneven
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006)
6.24 Cleavage
{110} Perfect, {110} Perfect, {110} Perfect
Not Available
6.26 Mohs Hardness
9.5 Chemical Composition
(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
10 Optical Properties
10.1 Luster
11.2 Pleochroism
AbsentWalter Schumann
Not Available
11.4 Dispersion
11.26 Transparency
Transparent, Translucent
Transparent, Translucent
11.27 Refractive Index
2.368-2.3711.544-1.553
1
3.25
15.5 Optic Character
Not Available
Not Available
15.6 Crystal System
15.7 Birefringence
Not Available0.009
0
0.296
15.8 Clarity
16 Benefits
16.1 Physical
16.1.1 Neurological
Not Available
Not Available
16.1.2 Cardiovascular
Not Available
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16.1.3 Respiratory
Not Available
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16.1.4 Reproductive
Not Available
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16.1.5 Digestive
Not Available
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16.2 Psychology
Not Available
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16.3 Healing
Not Available
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16.4 Qualities Associated
Not Available
Not Available