Origin
Linares, Jaén, Andalusia, Spain
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Color
Blue
Blue, gray, Black
Streak
Blue
Blue
For which Rashi?
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Planet
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Element of Planets
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Energy
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How to Wear?
Finger
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Ring Metal
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Deities
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Not to wear with
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Powers
-
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Birthstone
Planetary
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Talisman
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Tenacity
-
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Solubility
-
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Durability
-
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Specific Gravity
5.353-3.15
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
Perfect on {100}, imperfect on {001}
Good on [110] and on [001]
Mohs Hardness
2.56.0-6.5
2
10
👆🏻
Chemical Composition
PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
[ ]Na2(Mg3Al2)Si8O22(OH)2
Luster
Sub-Adamantine, Vitreous
Vitreous, Pearly
Pleochroism
X = pale blue; Y = blue; Z = Prussian blue
Strong
Dispersion
0.050.02
0.005
1
👆🏻
Transparency
Transparent
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Refractive Index
1.809-1.8591.606-1.637
1
3.25
👆🏻
Optic Character
-
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Crystal System
monoclinic
monoclinic
Birefringence
0.050-9999
0
0.296
👆🏻
Clarity
Transparent
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Physical
Neurological
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Cardiovascular
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Respiratory
Good
Good
Reproductive
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Digestive
Supports digestive health
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Psychology
Self-Expression
Communication
Healing
Emotional healing
Emotional healing
Qualities Associated
Communication
Peace