Origin
Brazil, USA, Madagascar, Sri Lanka, Burma, Thailand, Cambodia, Afghanistan, Russia
Italy
Color
Blue, Violet, Colorless, Red, Green, Brown
Yellow, orange, Red
Streak
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
3.64-3.663.355-3.433
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Uneven
Cleavage
None, but may exhibit slight parting
{???} Good, {???} Good
Mohs Hardness
8-9999
2
10
👆🏻
Chemical Composition
MgAl2O4
(Ca,Mn2+ ,Fe2+ ) 3Al 2BSi 4O 15(OH)Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous
Vitreous
Pleochroism
Absent
In thick sections
Dispersion
0.020.03
0.005
1
👆🏻
Transparency
Transparent, Translucent, Transparent to translucent
Transparent
Refractive Index
1.731.690-1.705
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
-
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
-
Reproductive
-
-
Digestive
-
Supports digestive health
Psychology
Revitalization
-
Healing
Emotional healing
Physical healing
Qualities Associated
Vitality
Harmony