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Piemontite
Piemontite

Kyanite
Kyanite



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Piemontite
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Kyanite

Piemontite and Kyanite 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
-
-
3.53-3.65
Splintery
[100] perfect [010] imperfect with 79° angle between
4-7
Al2SiO5

Piemontite and Kyanite Chemical Formula

While comparing Piemontite and Kyanite 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 Kyanite chemical formula.

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Piemontite and Kyanite Specific Gravity

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