Pargasite and Cancrinite Physical Properties

Pargasite

Cancrinite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.04-3.262.42-2.52

1 7.18

1.5 Fracture

Splintery, Brittle, Uneven

Irregular/uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

{110} perfect

Perfect on {10 1 0}, poor on {0001}

1.7 Mohs Hardness

5-65-6

2 10

1.8 Chemical Composition

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

Na 2Ca 2Al 6Si 6O 24(CO 3) 2Walter Schumann , Gemstones of the world (2001) More from other references

Pargasite and Cancrinite Chemical Formula

While comparing Pargasite and Cancrinite 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 Cancrinite chemical formula.

Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Cancrinite- Na 2Ca 2Al 6Si 6O 24(CO 3) 2Walter Schumann , Gemstones of the world (2001) More from other references

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Pargasite and Cancrinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pargasite and Cancrinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pargasite and Cancrinite Optical Properties during the identification of gemstone. Specific gravity of Pargasite is 2.42-2.52 whereas that of Cancrinite is 2.42-2.52.