Orthoclase and Albite Physical Properties

Orthoclase

Albite

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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

2.54-2.612.60-2.65

1 7.18

1.5 Fracture

Gems, Uneven

Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal

1.6 Cleavage

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

Perfect on {001}, very good on {010}, imperfect on {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

NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Orthoclase and Albite Chemical Formula

While comparing Orthoclase and Albite 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 Albite chemical formula.

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

Compare Colorless Gems

Orthoclase Vs Phosphosiderite

Orthoclase Vs Phenakite

Orthoclase Vs Phosphophyllite

Orthoclase and Albite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Orthoclase and Albite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Orthoclase and Albite Optical Properties during the identification of gemstone. Specific gravity of Orthoclase is 2.60-2.65 whereas that of Albite is 2.60-2.65.