Origin
Southern and central Africa
Brazil, USA, Madagascar, Sri Lanka, Burma, Thailand, Cambodia, Afghanistan, Russia
Color
Brown, White, Greenish, gray, Green, Brownish
Blue, Violet, Colorless, Red, Green, Brown
Streak
gray
White
For which Rashi?
-
Sagittarius, Scorpio
Planet
-
Pluto
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
Hephaestus
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.9-3.53.64-3.66
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal, Uneven
Cleavage
{110} Perfect, {???} Distinct, {???} Distinct
None, but may exhibit slight parting
Mohs Hardness
5.5-68
2
10
👆🏻
Chemical Composition
(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
MgAl2O4
Luster
Vitreous, Pearly
Vitreous
Pleochroism
-
Absent
Dispersion
0.010.02
0.005
1
👆🏻
Transparency
Transparent
Transparent, Translucent, Transparent to translucent
Refractive Index
1.603-1.6901.73
1
3.25
👆🏻
Optic Character
Biaxial/+
-
Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Isometric
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
Enhances brain function
-
Cardiovascular
Supports heart health
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Peace
Revitalization
Healing
Emotional healing
Emotional healing
Qualities Associated
Self-discovery
Vitality