Origin
Brazil, Kenya, Madagascar, Southern and central Africa
Brazil, USA, Madagascar, Sri Lanka, Burma, Thailand, Cambodia, Afghanistan, Russia
Color
Brown, Black
Blue, Violet, Colorless, Red, Green, Brown
Streak
White
White
For which Rashi?
Capricorn, Sagittarius
Sagittarius, Scorpio
Planet
Saturn
Pluto
Element of Planets
Earth
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
Nerthus
Hephaestus
Not to wear with
-
-
Powers
Protection
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.653.64-3.66
1
7.18
👆🏻
Fracture
Conchoidal, ConchoidalWalter Schumann
Conchoidal, Uneven
Cleavage
{0110} Indistinct
None, but may exhibit slight parting
Mohs Hardness
78
2
10
👆🏻
Chemical Composition
SiO2
MgAl2O4
Luster
Vitreous
Vitreous
Pleochroism
None
Absent
Dispersion
0.010.02
0.005
1
👆🏻
Transparency
Transparent, Translucent, Transparent to translucent
Transparent, Translucent, Transparent to translucent
Refractive Index
1.544-1.5531.73
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Hexagonal
Isometric
Birefringence
0.009-9999
0
0.296
👆🏻
Clarity
Opaque
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Grounding
Revitalization
Healing
Physical healing
Emotional healing
Qualities Associated
Grounding
Vitality