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Piemontite
Piemontite

Periclase
Periclase



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Piemontite
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Periclase

Piemontite and Periclase 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
-
-
3.7-3.9
Conchoidal
{001} perfect; {111} imperfect, may exhibit parting on , {011}
5.5-6
MgOMichael O’Donoghue , Gems, Sixth Edition (2006)

Piemontite and Periclase Chemical Formula

While comparing Piemontite and Periclase 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 Periclase chemical formula.

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Piemontite and Periclase Specific Gravity

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