Albite and Sunstone Physical Properties

Albite

Sunstone

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.60-2.652.62-2.65

1 7.18

1.5 Fracture

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

Gemstones of the world (2001)

1.6 Cleavage

Perfect on {001}, very good on {010}, imperfect on {110}

001

1.7 Mohs Hardness

6-6.56

2 10

1.8 Chemical Composition

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

Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

Albite and Sunstone Chemical Formula

While comparing Albite and Sunstone 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 Albite and Sunstone chemical formula.

Chemical formula of Albite- NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

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Albite and Sunstone Specific Gravity

Another important criteria for qualitative analysis of gemstones is Albite and Sunstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Albite and Sunstone Optical Properties during the identification of gemstone. Specific gravity of Albite is 2.62-2.65 whereas that of Sunstone is 2.62-2.65.