1 Astrology
1.1 Origin
Canada, Russia
India, China
1.2 Color
Black, Green, Black, Green, Black, Green, gray, Black, Green, gray
Blue, Yellow, Brown, gray, Reddish, Greenish
1.3 Streak
Not Available, Not Available, gray, Green
White
1.4 For which Rashi?
Not Available
Not Available
1.5 Planet
Not Available
Not Available
1.6 Element of Planets
Not Available
polyatomic nonmetal
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
3.3-3.5Not Available
1
7.18
2.5 Fracture
Uneven, Brittle, Metallic, Brittle, Metallic
(e.g. graphite).
2.6 Cleavage
Perfect on [110]
{???} Imperfect, {???} Imperfect
2.7 Mohs Hardness
2.8 Chemical Composition
NaNa2(Fe++4Fe+++)Si8O22(OH)2
Not Available
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Strong: Blue-greens
Not Available
3.3 Dispersion
3.4 Transparency
Not Available
Not Available
3.5 Refractive Index
1.652-1.699Not Available
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
Not AvailableNot Available
0
0.296
3.9 Clarity
Not Available
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