Glaucophane and Afghanite Physical Properties

Glaucophane

Afghanite

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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

3-3.15

2.55-2.65

1.5 Fracture

Conchoidal, Brittle, Conchoidal

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, Conchoidal, Brittle

1.6 Cleavage

Good on [110] and on [001]

Perfect {10 1 0}

1.7 Mohs Hardness

6.0-6.5

5.5-6

1.8 Chemical Composition

[ ]Na2(Mg3Al2)Si8O22(OH)2

(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)

Glaucophane and Afghanite Chemical Formula

While comparing Glaucophane and Afghanite 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 Afghanite chemical formula.

Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2
Chemical formula of Afghanite- (Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)

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Glaucophane and Afghanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Glaucophane and Afghanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Glaucophane and Afghanite Optical Properties during the identification of gemstone. Specific gravity of Glaucophane is 2.55-2.65 whereas that of Afghanite is 2.55-2.65.