Glaucophane and Gahnite Physical Properties

Glaucophane

Gahnite

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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

3-3.154.00-4.62

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal

Conchoidal, Uneven

1.6 Cleavage

Good on [110] and on [001]

Indistinct parting on [111]

1.7 Mohs Hardness

6.0-6.57.5-8

2 10

1.8 Chemical Composition

[ ]Na2(Mg3Al2)Si8O22(OH)2

ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Glaucophane and Gahnite Chemical Formula

While comparing Glaucophane and Gahnite 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 Gahnite chemical formula.

Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2
Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Glaucophane and Gahnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Glaucophane and Gahnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Glaucophane and Gahnite Optical Properties during the identification of gemstone. Specific gravity of Glaucophane is 4.00-4.62 whereas that of Gahnite is 4.00-4.62.