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Pargasite
Pargasite

Sardonyx
Sardonyx



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Pargasite
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Sardonyx

Pargasite and Sardonyx Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.04-3.26
Splintery, Uneven
{110} perfect
5-6
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006)
 
-
-
-
2.55-2.70
-
None
6.5-7
SiO 2Ulrich Henn and Claudio C.

Pargasite and Sardonyx Chemical Formula

While comparing Pargasite and Sardonyx 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 Pargasite and Sardonyx chemical formula.

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Pargasite and Sardonyx Specific Gravity

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