Orthoclase and Afghanite Physical Properties

Orthoclase

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

2.54-2.612.55-2.65

1 7.18

1.5 Fracture

Gems, Uneven

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

1.6 Cleavage

Has perfect cleavage on {001} and good cleavage on {010}. Cleavages intersect at 90°.

Perfect {10 1 0}

1.7 Mohs Hardness

65.5-6

2 10

1.8 Chemical Composition

KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Orthoclase and Afghanite Chemical Formula

While comparing Orthoclase 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 Orthoclase and Afghanite chemical formula.

Chemical formula of Orthoclase- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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

Orthoclase Vs Phosphosiderite

Orthoclase Vs Phenakite

Orthoclase Vs Phosphophyllite

Orthoclase and Afghanite Specific Gravity

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