1 Astrology
1.1 Origin
Southern and central Africa
1.2 Color
Yellow, Brown, Black, Black
1.3 Streak
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
4.392
Check 4.392 Range Gemstones!
1
7.18
2.5 Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
2.6 Cleavage
{010} moderate, {100} imperfect
2.7 Mohs Hardness
6.5-7
Check 6.5-7 Range Gemstones!
2
10
2.8 Chemical Composition
Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
3 Optical Properties
3.1 Luster
Vitreous, Resinous
3.2 Pleochroism
Faint
3.3 Dispersion
Not Available
Rank: N/A (Overall) ▶
0.007
1
3.4 Transparency
TransparentAnthony et al, Handbook of mineralogy (2001)
3.5 Refractive Index
1.827-1.879
Check 1.827-1.879 Range Gemstones!
1
3.25
3.6 Optic Character
Not Available
3.7 Crystal System
Orthorhombic
3.8 Birefringence
0.042-0.051
Check 0.042-0.051 Range Gemstones!
0
0.296
3.9 Clarity
TransparentAnthony et al
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