Labradorite and Anorthoclase Physical Properties

Labradorite

Anorthoclase

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.69-2.722.56-2.62

1 7.18

1.5 Fracture

Uneven, Conchoidal, Gems, Sixth Edition (2006)

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}

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

1.7 Mohs Hardness

6-6.56-6.5

2 10

1.8 Chemical Composition

(Na,Ca)_1-2Si_3-2O₈

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

Labradorite and Anorthoclase Chemical Formula

While comparing Labradorite 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 Labradorite and Anorthoclase chemical formula.

Chemical formula of Labradorite- (Na,Ca)_1-2Si_3-2O₈
Chemical formula of Anorthoclase- (Na,K)AlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Labradorite and Anorthoclase Specific Gravity

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