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Piemontite
Piemontite

Gypsum
Gypsum



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Piemontite
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Gypsum

Piemontite and Gypsum Physical Properties

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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)
 
Flexible
Soluble
-
2.20-2.40
Conchoidal, Splintery, Fibrous
Perfect on {010}, distinct on {100}
2
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)

Piemontite and Gypsum Chemical Formula

While comparing Piemontite and Gypsum 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 Gypsum chemical formula.

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Piemontite and Gypsum Specific Gravity

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