Glaucophane and Pargasite Physical Properties

Glaucophane

Pargasite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3-3.153.04-3.26

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal

Splintery, Brittle, Uneven

1.6 Cleavage

Good on [110] and on [001]

{110} perfect

1.7 Mohs Hardness

6.0-6.55-6

2 10

1.8 Chemical Composition

[ ]Na2(Mg3Al2)Si8O22(OH)2

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

Glaucophane and Pargasite Chemical Formula

While comparing Glaucophane 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 Glaucophane and Pargasite chemical formula.

Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2
Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Blue Gemstones

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Glaucophane and Pargasite Specific Gravity

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