Orthoclase and Anorthite Physical Properties

Orthoclase

Anorthite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.54-2.612.77

1 7.18

1.5 Fracture

Gems, Uneven

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

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

Perfect [001] good [010] poor [110]

1.7 Mohs Hardness

66-6.5

2 10

1.8 Chemical Composition

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

CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Orthoclase and Anorthite Chemical Formula

While comparing Orthoclase and Anorthite 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 Anorthite chemical formula.

Chemical formula of Orthoclase- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Colorless Gems

Orthoclase Vs Phosphosiderite

Orthoclase Vs Phosphophyllite

Orthoclase Vs Phenakite

Orthoclase and Anorthite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Orthoclase and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Orthoclase and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Orthoclase is 2.77 whereas that of Anorthite is 2.77.