1 Astrology
1.1 Origin
Sri Lanka, India, Brazil
1.2 Color
Green, Brown, Brown, Colorless, Green, gray, Yellow
1.3 Streak
Brownish, White, Brownish, White
1.4 For which Rashi?
Not Available
1.5 Planet
Not Available
1.6 Element of Planets
Not Available
1.7 How to Wear?
1.7.1 Finger
Not Available
1.7.2 Ring Metal
Not Available
1.8 Energy
Not Available
1.9 Deities
Not Available
1.10 Not to wear with
Not Available
1.11 Powers
Not Available
1.12 Birthstone
1.12.1 Planetary
Not Available
1.12.2 Talisman
Not Available
2 Physical Properties
2.1 Tenacity
Not Available
2.2 Solubility
Not Available
2.3 Durability
Not Available
2.4 Specific Gravity
3.55-3.73
Check 3.55-3.73 Range Gemstones!
1
7.18
2.5 Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
2.6 Cleavage
none
2.7 Mohs Hardness
7-7.5
Check 7-7.5 Range Gemstones!
2
10
2.8 Chemical Composition
Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
3 Optical Properties
3.1 Luster
Greasy, Vitreous
3.2 Pleochroism
None
3.3 Dispersion
0.02
Rank: 18 (Overall) ▶
0.007
1
3.4 Transparency
Gemmological Tables (2004) More from other references
3.5 Refractive Index
1.730-1.760
Check 1.730-1.760 Range Gemstones!
1
3.25
3.6 Optic Character
Not Available
3.7 Crystal System
cubic
3.8 Birefringence
0.020
Check 0.020 Range Gemstones!
0
0.296
3.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
4.1.2 Cardiovascular
Not Available
4.1.3 Respiratory
Not Available
4.1.4 Reproductive
Not Available
4.1.5 Digestive
Not Available
4.2 Psychology
Not Available
4.3 Healing
Not Available
4.4 Qualities Associated
Not Available