Glaucophane and Anorthite Physical Properties

Glaucophane

Anorthite

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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

3-3.152.77

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

Good on [110] and on [001]

Perfect [001] good [010] poor [110]

1.7 Mohs Hardness

6.0-6.56-6.5

2 10

1.8 Chemical Composition

[ ]Na2(Mg3Al2)Si8O22(OH)2

CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Glaucophane and Anorthite Chemical Formula

While comparing Glaucophane and Anorthite 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 Anorthite chemical formula.

Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2
Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Glaucophane and Anorthite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Glaucophane and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Glaucophane and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Glaucophane is 2.77 whereas that of Anorthite is 2.77.