Afghanite and Anorthoclase Physical Properties

Afghanite

Anorthoclase

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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

2.55-2.652.56-2.62

1 7.18

1.5 Fracture

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

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

Perfect {10 1 0}

From the Greek for oblique and fracture, descriptive of the cleavage

1.7 Mohs Hardness

5.5-66-6.5

2 10

1.8 Chemical Composition

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

(Na,K)AlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Afghanite and Anorthoclase Chemical Formula

While comparing Afghanite and Anorthoclase 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 Afghanite and Anorthoclase chemical formula.

Chemical formula of Afghanite- (Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
Chemical formula of Anorthoclase- (Na,K)AlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Afghanite and Anorthoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Afghanite and Anorthoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Afghanite and Anorthoclase Optical Properties during the identification of gemstone. Specific gravity of Afghanite is 2.56-2.62 whereas that of Anorthoclase is 2.56-2.62.