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Piemontite
Piemontite

Lazurite
Lazurite



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Piemontite
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Lazurite

Piemontite and Lazurite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
-9999
Uneven, Splintery
[001] good, [100] distinct
6-6.5
Ca2Al3(SiO4)(Si2O7)O(OH)
 
Brittle
Soluble
-
2.75
Uneven, Conchoidal
Imperfect on {110}
5.5
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

Piemontite and Lazurite Chemical Formula

While comparing Piemontite and Lazurite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Piemontite and Lazurite chemical formula.

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Piemontite and Lazurite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Piemontite and Lazurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Piemontite Vs Lazurite during the identification of gemstone. Specific gravity of Piemontite is whereas that of Lazurite is .