Origin
Linares, Jaén, Andalusia, Spain
China, Canada
Color
Blue
Green, Yellow, Brown, White, gray, Black
Streak
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
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.352.90-3.10
1
7.18
👆🏻
Fracture
Conchoidal
Splintery, Granular
Cleavage
Perfect on {100}, imperfect on {001}
None
Mohs Hardness
2.56-6.5
2
10
👆🏻
Chemical Composition
PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
Luster
Sub-Adamantine, Vitreous
Vitreous, Greasy
Pleochroism
X = pale blue; Y = blue; Z = Prussian blue
None
Dispersion
0.050.01
0.005
1
👆🏻
Transparency
Transparent
Translucent
Refractive Index
1.809-1.8591.600-1.627
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
monoclinic
Birefringence
0.0500.027
0
0.296
👆🏻
Clarity
Transparent
Translucent
Physical
Neurological
-
Aids in mental clarity and focus
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
Supports digestive health
-
Psychology
Self-Expression
Emotional Balance
Healing
Emotional healing
Physical healing
Qualities Associated
Communication
Healing