Glaucophane and Poudretteite Physical Properties

Glaucophane

Poudretteite

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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

3-3.152.51-2.53

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal

Conchoidal, Splintery

1.6 Cleavage

Good on [110] and on [001]

None

1.7 Mohs Hardness

6.0-6.55

2 10

1.8 Chemical Composition

[ ]Na2(Mg3Al2)Si8O22(OH)2

KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)

Glaucophane and Poudretteite Chemical Formula

While comparing Glaucophane and Poudretteite 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 Poudretteite chemical formula.

Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2
Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Blue Gemstones

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Glaucophane and Poudretteite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Glaucophane and Poudretteite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Glaucophane and Poudretteite Optical Properties during the identification of gemstone. Specific gravity of Glaucophane is 2.51-2.53 whereas that of Poudretteite is 2.51-2.53.