Riebeckite and Anorthoclase Physical Properties

Riebeckite

Anorthoclase

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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

3.28-3.442.56-2.62

1 7.18

1.5 Fracture

Uneven, Splintery, Brittle

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

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

From the Greek for oblique and fracture, descriptive of the cleavage

1.7 Mohs Hardness

5.0-6.06-6.5

2 10

1.8 Chemical Composition

Not Available

(Na,K)AlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Riebeckite and Anorthoclase Chemical Formula

While comparing Riebeckite and Anorthoclase 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 Anorthoclase chemical formula.

Chemical formula of Anorthoclase- (Na,K)AlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Riebeckite and Anorthoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Riebeckite and Anorthoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Riebeckite and Anorthoclase Optical Properties during the identification of gemstone. Specific gravity of Riebeckite is 2.56-2.62 whereas that of Anorthoclase is 2.56-2.62.