Sunstone and Riebeckite Physical Properties

Sunstone

Riebeckite

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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

2.62-2.653.28-3.44

1 7.18

1.5 Fracture

Gemstones of the world (2001)

Uneven, Splintery, Brittle

1.6 Cleavage

001

Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}

1.7 Mohs Hardness

65.0-6.0

2 10

1.8 Chemical Composition

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

Not Available

Sunstone and Riebeckite Chemical Formula

While comparing Sunstone and Riebeckite 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 Riebeckite chemical formula.

Chemical formula of Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

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Sunstone and Riebeckite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sunstone and Riebeckite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sunstone and Riebeckite Optical Properties during the identification of gemstone. Specific gravity of Sunstone is 3.28-3.44 whereas that of Riebeckite is 3.28-3.44.