1 Astrology
1.1 Origin
Australia, Brazil, Canada, Colombia, Madagascar, Zimbabwe
1.2 Color
Brown
1.3 Streak
Brownish, Red, Black
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
5.2
Check 5.2 Range Gemstones!
1
7.18
2.5 Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009)
2.6 Cleavage
Good in one direction
2.7 Mohs Hardness
6-6.5
Check 6-6.5 Range Gemstones!
2
10
2.8 Chemical Composition
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
3 Optical Properties
3.1 Luster
Resinous
3.2 Pleochroism
Not Available
3.3 Dispersion
Not Available
Rank: N/A (Overall) ▶
0.007
1
3.4 Transparency
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
3.5 Refractive Index
2.190-2.457
Check 2.190-2.457 Range Gemstones!
1
3.25
3.6 Optic Character
Not Available
3.7 Crystal System
Orthorhombic
3.8 Birefringence
0.083
Check 0.083 Range Gemstones!
0
0.296
3.9 Clarity
TransparentWalter Schumann
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