Pargasite and Chalcopyrite Physical Properties

Pargasite

Chalcopyrite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.04-3.264.1-4.3

1 7.18

1.5 Fracture

Splintery, Brittle, Uneven

Uneven, Brittle, Metallic

1.6 Cleavage

{110} perfect

Indistinct on {011}

1.7 Mohs Hardness

5-63.5-4

2 10

1.8 Chemical Composition

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

CuFeS 2Anthony et al , Handbook of mineralogy (2001)

Pargasite and Chalcopyrite Chemical Formula

While comparing Pargasite and Chalcopyrite 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 Chalcopyrite chemical formula.

Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Chalcopyrite- CuFeS 2Anthony et al , Handbook of mineralogy (2001)

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Pargasite and Chalcopyrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pargasite and Chalcopyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pargasite and Chalcopyrite Optical Properties during the identification of gemstone. Specific gravity of Pargasite is 4.1-4.3 whereas that of Chalcopyrite is 4.1-4.3.