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Piemontite
Piemontite

Sardonyx
Sardonyx



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Piemontite
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Sardonyx

Piemontite and Sardonyx 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)
 
-
-
-
2.55-2.70
-
None
6.5-7
SiO 2Ulrich Henn and Claudio C.

Piemontite and Sardonyx Chemical Formula

While comparing Piemontite and Sardonyx 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 Sardonyx chemical formula.

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Piemontite and Sardonyx Specific Gravity

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