1 Astrology
1.1 Origin
Southern and central Africa
Canada, Russia
1.2 Color
Greenish, Blue, Colorless, Green, Yellow
Black, Green, Black, Green, Black, Green, gray, Black, Green, gray
1.3 Streak
Greenish, gray
Not Available, Not Available, gray, Green
1.4 For which Rashi?
Not Available
Not Available
1.5 Planet
Not Available
Not Available
1.6 Element of Planets
Not Available
Not Available
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
Not Available
Not Available
1.9 Deities
Not Available
Not Available
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
Not Available
Not Available
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
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
2.5 Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
Uneven, Brittle, Metallic, Brittle, Metallic
2.6 Cleavage
(0001) indistinct
Perfect on [110]
2.7 Mohs Hardness
2.8 Chemical Composition
SiCArthur Thomas , Gemstones (2009)
NaNa2(Fe++4Fe+++)Si8O22(OH)2
3 Optical Properties
3.1 Luster
3.2 Pleochroism
NilArthur Thomas
Strong: Blue-greens
3.3 Dispersion
3.4 Transparency
Gemmological Tables (2004) More from other references
Not Available
3.5 Refractive Index
2.648-2.6911.652-1.699
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
0.043Not Available
0
0.296
3.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Not Available
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