Riebeckite and Sunstone Physical Properties

Riebeckite

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

3.28-3.442.62-2.65

1 7.18

1.5 Fracture

Uneven, Splintery, Brittle

Gemstones of the world (2001)

1.6 Cleavage

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

001

1.7 Mohs Hardness

5.0-6.06

2 10

1.8 Chemical Composition

Not Available

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

Riebeckite and Sunstone Chemical Formula

While comparing Riebeckite 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 Riebeckite and Sunstone chemical formula.

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

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Riebeckite and Sunstone Specific Gravity

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