Apophyllite and Sunstone Physical Properties

Apophyllite

Sunstone

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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

2.30-2.502.62-2.65

1 7.18

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009)

Gemstones of the world (2001)

1.6 Cleavage

Perfect on (001)

001

1.7 Mohs Hardness

4.5-56

2 10

1.8 Chemical Composition

KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

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

Apophyllite and Sunstone Chemical Formula

While comparing Apophyllite 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 Apophyllite and Sunstone chemical formula.

Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Chemical formula of Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

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Apophyllite and Sunstone Specific Gravity

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