Origin
Sri Lanka
Brazil
Color
Blue
Yellow, White, Brown, Brownish, Black
Streak
-
Brown, Yellow, 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
-
Soluble
Durability
-
-
Specific Gravity
3.65-4.553.06-3.25
1
7.18
👆🏻
Fracture
Conchoidal
Sub-Conchoidal, Conchoidal, Uneven
Cleavage
None, but may exhibit slight parting
Poor/indistinct on {100}
Mohs Hardness
7.5-84.5-5
2
10
👆🏻
Chemical Composition
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
(Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)
Luster
Vitreous
Vitreous, Resinous
Pleochroism
-
visible
Dispersion
0.020.03
0.005
1
👆🏻
Transparency
-
Transparent
Refractive Index
1.735-1.7901.639-1.672
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
Orthorhombic
Birefringence
-99990.027-0.042
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Physical
Neurological
-
-
Cardiovascular
-
Enhances mental clarity
Respiratory
-
Excellent
Reproductive
-
-
Digestive
-
-
Psychology
Empowerment
Creativity
Healing
-
Emotional healing
Qualities Associated
Transformation
Joy