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Piemontite
Piemontite

Witherite
Witherite



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Piemontite
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Witherite

Piemontite and Witherite 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)
 
-
-
-
4.27-4.35
Conchoidal
{010} Distinct
3-3.5
BaCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Piemontite and Witherite Chemical Formula

While comparing Piemontite and Witherite 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 Witherite chemical formula.

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Piemontite and Witherite Specific Gravity

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