Diaspore and Pargasite Physical Properties

Diaspore

Pargasite

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1 Physical Properties

1.1 Tenacity

Very brittle

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.30-3.403.04-3.26

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal

Splintery, Brittle, Uneven

1.6 Cleavage

{010} perfect, {110} distinct, {100} in traces

{110} perfect

1.7 Mohs Hardness

6.5-75-6

2 10

1.8 Chemical Composition

AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

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

Diaspore and Pargasite Chemical Formula

While comparing Diaspore 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 Diaspore and Pargasite chemical formula.

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

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Diaspore and Pargasite Specific Gravity

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