Origin
Sri Lanka
Linares, Jaén, Andalusia, Spain
Color
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Green, gray
Blue
Streak
White, Brownish
Blue
For which Rashi?
-
-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
Brittle
-
Solubility
insoluble
-
Durability
-
-
Specific Gravity
6.86-7.035.35
1
7.18
👆🏻
Fracture
Subconchoidal, Uneven, Conchoidal, Irregular
Conchoidal
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
Perfect on {100}, imperfect on {001}
Mohs Hardness
6-72.5
2
10
👆🏻
Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Adamantine, Greasy
Sub-Adamantine, Vitreous
Pleochroism
Pleochroic haloes have been observed. Dichroic in yellow
X = pale blue; Y = blue; Z = Prussian blue
Dispersion
0.070.05
0.005
1
👆🏻
Transparency
Transparent, Translucent
Transparent
Refractive Index
1.990-2.1051.809-1.859
1
3.25
👆🏻
Optic Character
-
-
Crystal System
tetragonal
monoclinic
Birefringence
0.096-0.0980.050
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
-
Respiratory
Poor
Good
Reproductive
-
-
Digestive
-
Supports digestive health
Psychology
Focus
Self-Expression
Healing
Emotional healing
Emotional healing
Qualities Associated
Manifestation
Communication