Pargasite and Thaumasite Physical Properties

Pargasite

Thaumasite

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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

3.04-3.261.91

1 7.18

1.5 Fracture

Splintery, Brittle, Uneven

Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

{110} perfect

Indistinct

1.7 Mohs Hardness

5-63.5

2 10

1.8 Chemical Composition

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

Ca 6Si 2(CO 3) 2(SO 4) 2(OH) 12 · 24H 2OUlrich Henn and Claudio C.

Pargasite and Thaumasite Chemical Formula

While comparing Pargasite and Thaumasite 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 Thaumasite chemical formula.

Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Thaumasite- Ca 6Si 2(CO 3) 2(SO 4) 2(OH) 12 · 24H 2OUlrich Henn and Claudio C.

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Pargasite and Thaumasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pargasite and Thaumasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pargasite and Thaumasite Optical Properties during the identification of gemstone. Specific gravity of Pargasite is 1.91 whereas that of Thaumasite is 1.91.