Riebeckite and Andesine Physical Properties

Riebeckite

Andesine

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.28-3.44

2.65-2.69

1.5 Fracture

Uneven, Splintery, Brittle

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

1.6 Cleavage

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

Perfect on {001}, good on {010}

1.7 Mohs Hardness

5.0-6.0

6-6.5

1.8 Chemical Composition

Not Available

(Na,Ca)Al_1-2Si_3-2O₈

Riebeckite and Andesine Chemical Formula

While comparing Riebeckite and Andesine 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 Andesine chemical formula.

Chemical formula of Andesine- (Na,Ca)Al_1-2Si_3-2O₈

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Riebeckite and Andesine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Riebeckite and Andesine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Riebeckite and Andesine Optical Properties during the identification of gemstone. Specific gravity of Riebeckite is 2.65-2.69 whereas that of Andesine is 2.65-2.69.