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Selenite
Selenite

Piemontite
Piemontite



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Selenite
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Piemontite

Selenite and Piemontite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

-9999-9999
1 7.18
👆🏻

Fracture

-
Uneven, Splintery

Cleavage

Perfect
[001] good, [100] distinct

Mohs Hardness

26-6.5
2 10
👆🏻

Chemical Composition

CaSO4·2H2O
Ca2Al3(SiO4)(Si2O7)O(OH)

Selenite and Piemontite Chemical Formula

While comparing Selenite and Piemontite 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 Selenite and Piemontite chemical formula.

  • Chemical formula of Selenite- CaSO4·2H2O
  • Chemical formula of Piemontite- Ca2Al3(SiO4)(Si2O7)O(OH)

Selenite and Piemontite Specific Gravity

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