Sunstone and Sellaite Physical Properties

Sunstone

Sellaite

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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

2.62-2.653.14-3.16

1 7.18

1.5 Fracture

Gemstones of the world (2001)

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle

1.6 Cleavage

001

Perfect on {010} and {110}

1.7 Mohs Hardness

65-5.5

2 10

1.8 Chemical Composition

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

MgF 2Ulrich Henn and Claudio C.

Sunstone and Sellaite Chemical Formula

While comparing Sunstone and Sellaite 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 Sunstone and Sellaite chemical formula.

Chemical formula of Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈
Chemical formula of Sellaite- MgF 2Ulrich Henn and Claudio C.

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Sunstone and Sellaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sunstone and Sellaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sunstone and Sellaite Optical Properties during the identification of gemstone. Specific gravity of Sunstone is 3.14-3.16 whereas that of Sellaite is 3.14-3.16.