Origin
Linares, Jaén, Andalusia, Spain
Tanzania, Madagascar, Kenya, Sri Lanka, Burma, Australia
Color
Blue
Green, Brown, Colorless, Greenish, Yellow
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
5.353.25-3.45
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal, Uneven
Cleavage
Perfect on {100}, imperfect on {001}
Good on {110}
Mohs Hardness
2.56.5
2
10
👆🏻
Chemical Composition
PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Luster
Sub-Adamantine, Vitreous
Vitreous
Pleochroism
X = pale blue; Y = blue; Z = Prussian blue
X = colorless to green; Y = colorless
Dispersion
0.050.02
0.005
1
👆🏻
Transparency
Transparent
-
Refractive Index
1.809-1.8591.660-1.685
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Orthorhombic
Birefringence
0.0500.012-0.017
0
0.296
👆🏻
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
-
Reproductive
-
-
Digestive
Supports digestive health
-
Psychology
Self-Expression
Harmony
Healing
Emotional healing
Emotional healing
Qualities Associated
Communication
Self-worth