Anorthoclase and Afghanite Physical Properties

Anorthoclase

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

2.56-2.622.55-2.65

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

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

1.6 Cleavage

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

Perfect {10 1 0}

1.7 Mohs Hardness

6-6.55.5-6

2 10

1.8 Chemical Composition

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

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

Anorthoclase and Afghanite Chemical Formula

While comparing Anorthoclase 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 Anorthoclase and Afghanite chemical formula.

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

Compare Colorless Gems

Anorthoclase Vs Black Opal

Anorthoclase Vs Beryl

Anorthoclase Vs Beryllonite

Anorthoclase and Afghanite Specific Gravity

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