Origin
India, Southern and central Africa, Madagascar
Australia
Color
Black, Brownish, Greenish
Red
Streak
Brown
White, Colorless
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
-
-
Durability
-
-
Specific Gravity
3.18-3.223.1
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Uneven, Conchoidal
Cleavage
{1011} Indistinct
Perfect {010} imperfect {100}
Mohs Hardness
-99996-7
2
10
👆🏻
Chemical Composition
Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Ca2Al3(SiO4)3(OH)
Luster
Vitreous
Vitreous
Pleochroism
Very strong: yellow-brown pale yellow
Present
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Transparent, Translucent
Opaque, Translucent, Opaque . May be translucent in thin backlit sections.
Refractive Index
1.635-1.6721.695
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
Orthorhombic
Birefringence
0.0250.006-0.018
0
0.296
👆🏻
Clarity
Transparent
OpaqueHerve Nicolas Lazzarelli
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
-
Reproductive
-
-
Digestive
-
-
Psychology
Protection
Emotional Healing
Healing
Emotional healing
Emotional healing
Qualities Associated
Protection & Grounding
Love