Origin
-
Australia
Color
Brownish, Black
Reddish, Brown, Red, pink
Streak
Brown
White
For which Rashi?
-
-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
Partly soluble in HCl.
Durability
-
-
Specific Gravity
3.263.32-3.43
1
7.18
👆🏻
Fracture
Uneven
Conchoidal
Cleavage
None
{100} perfect; {110} and {1 1 0} good; {010} poor
Mohs Hardness
-99995.5-6
2
10
👆🏻
Chemical Composition
NaFe3+3Fe3+6(BO 3) 3Si 6O 18(O,OH) 4Anthony et al , Handbook of Mineralogy (2001)
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Resinous
Vitreous
Pleochroism
Strong: yellow-brown
Weak
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Translucent
Transparent, Translucent
Refractive Index
-99991.662-1.707
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
Triclinic
Birefringence
-99990.013-0.015
0
0.296
👆🏻
Clarity
Translucent
Transparent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
-
Excellent
Reproductive
-
-
Digestive
-
-
Psychology
-
Love
Healing
-
Emotional healing
Qualities Associated
Protection
Love