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Piemontite
Piemontite

Esperite
Esperite



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Piemontite
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Esperite

Piemontite and Esperite 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)
 
-
-
-
4.28-4.42
Conchoidal
Distinct on [010] and [100] poor on [101]
5-5.5
PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)

Piemontite and Esperite Chemical Formula

While comparing Piemontite and Esperite 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 Esperite chemical formula.

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Piemontite and Esperite Specific Gravity

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