Pargasite and Rosasite Physical Properties

Pargasite

Rosasite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Effervesces in cold

1.3 Durability

Not Available

1.4 Specific Gravity

3.04-3.264-4.2

1 7.18

1.5 Fracture

Splintery, Brittle, Uneven

Splintery

1.6 Cleavage

{110} perfect

Perfect on {100} and {010}

1.7 Mohs Hardness

5-64

2 10

1.8 Chemical Composition

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

Not Available

Pargasite and Rosasite Chemical Formula

While comparing Pargasite and Rosasite 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 Rosasite chemical formula.

Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Pargasite and Rosasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pargasite and Rosasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pargasite and Rosasite Optical Properties during the identification of gemstone. Specific gravity of Pargasite is 4-4.2 whereas that of Rosasite is 4-4.2.