Origin
Linares, Jaén, Andalusia, Spain
Southern and central Africa, Vietnam
Color
Blue
Green, Black, Brown
Streak
Blue
White
For which Rashi?
-
-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.353.04-3.26
1
7.18
👆🏻
Fracture
Conchoidal
Splintery, Uneven
Cleavage
Perfect on {100}, imperfect on {001}
{110} perfect
Mohs Hardness
2.55-6
2
10
👆🏻
Chemical Composition
PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Sub-Adamantine, Vitreous
Vitreous
Pleochroism
X = pale blue; Y = blue; Z = Prussian blue
-
Dispersion
0.050.02
0.005
1
👆🏻
Transparency
Transparent
Transparent
Refractive Index
1.809-1.8591.613-1.663
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
monoclinic
Birefringence
0.0500.020
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
Excellent
Reproductive
-
Supports reproductive health
Digestive
Supports digestive health
-
Psychology
Self-Expression
-
Healing
Emotional healing
Emotional healing
Qualities Associated
Communication
Healing