Origin
Linares, Jaén, Andalusia, Spain
Southern and central Africa
Color
Blue
Black, Brownish, Brown
Streak
Blue
Brown
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
-
-
Durability
-
-
Specific Gravity
5.354.5-4.8
1
7.18
👆🏻
Fracture
Conchoidal
Uneven
Cleavage
Perfect on {100}, imperfect on {001}
None, parting may develop along {111}
Mohs Hardness
2.55.5
2
10
👆🏻
Chemical Composition
PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Fe++Cr2O4
Luster
Sub-Adamantine, Vitreous
-
Pleochroism
X = pale blue; Y = blue; Z = Prussian blue
none.
Dispersion
0.050.04
0.005
1
👆🏻
Transparency
Transparent
-
Refractive Index
1.809-1.8592.08-2.16
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Isometric
Birefringence
0.050-9999
0
0.296
👆🏻
Clarity
Transparent
-
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
Poor
Reproductive
-
-
Digestive
Supports digestive health
-
Psychology
Self-Expression
Vitality
Healing
Emotional healing
Emotional healing
Qualities Associated
Communication
Protection