Sardonyx and Pargasite Physical Properties

Sardonyx

Pargasite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.703.04-3.26

1 7.18

1.8 Fracture

Not Available

Splintery, Brittle, Uneven

1.9 Cleavage

Not Available

{110} perfect

1.10 Mohs Hardness

6.5-75-6

2 10

2.4 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Sardonyx and Pargasite Chemical Formula

While comparing Sardonyx and Pargasite 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 Sardonyx and Pargasite chemical formula.

Chemical formula of Sardonyx- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Sardonyx and Pargasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sardonyx and Pargasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sardonyx and Pargasite Optical Properties during the identification of gemstone. Specific gravity of Sardonyx is 3.04-3.26 whereas that of Pargasite is 3.04-3.26.