1 Astrology
1.1 Origin
Not Available
Southern and central Africa, Sixth Edition (2006)
1.2 Color
Brown, Yellow, White, Brown, Greenish, Yellow, White
Blue, Green, Blue, Brown
1.3 Streak
White, gray
White, Blue, Green
1.4 For which Rashi?
1.5 Planet
1.6 Element of Planets
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
Not Available
1.8 Energy
1.9 Deities
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
1.12 Birthstone
1.12.1 Planetary
Not Available
Not Available
1.12.2 Talisman
Not Available
Not Available
2 Physical Properties
2.1 Tenacity
2.2 Solubility
Not Available
Not Available
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
2.5 Fracture
Uneven, Even, Yellow, White
Sub-Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
2.6 Cleavage
Perfect on the {001}
none
2.7 Mohs Hardness
2.8 Chemical Composition
K(Mg,Fe++)3[AlSi3O10(OH,F)2
Cu2H2Si2O5(OH)4
3 Optical Properties
3.1 Luster
Vitreous, Pearly
Vitreous, Greasy
3.2 Pleochroism
Strong
AbsentWalter Schumann
3.3 Dispersion
3.4 Transparency
3.5 Refractive Index
1.565-1.6251.460-1.570
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
0.03-0.070.023-0.050
0
0.296
3.9 Clarity
Not Available
Gemmological Tables (2004) More from other references
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
Not Available
4.1.2 Cardiovascular
Not Available
Not Available
4.1.3 Respiratory
Not Available
Not Available
4.1.4 Reproductive
Not Available
Not Available
4.1.5 Digestive
Not Available
Not Available
4.2 Psychology
Not Available
Not Available
4.3 Healing
Not Available
Not Available
4.4 Qualities Associated
Not Available
Not Available