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Piemontite
Piemontite

Rubellite
Rubellite



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Piemontite
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Rubellite

Piemontite and Rubellite 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)
 
-
-
-
3.01-3.06
Conchoidal
Indiscernible
7-7.5
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

Piemontite and Rubellite Chemical Formula

While comparing Piemontite and Rubellite 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 Rubellite chemical formula.

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Piemontite and Rubellite Specific Gravity

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