Labradorite and Amazonite Physical Properties

Labradorite

Amazonite

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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

2.69-2.72

2.55-2.57

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}

2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal

1.7 Mohs Hardness

6-6.5

1.8 Chemical Composition

(Na,Ca)_1-2Si_3-2O₈

KAlSi₃O₈

Labradorite and Amazonite Chemical Formula

While comparing Labradorite and Amazonite 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 Amazonite chemical formula.

Chemical formula of Labradorite- (Na,Ca)_1-2Si_3-2O₈
Chemical formula of Amazonite- KAlSi₃O₈

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Labradorite and Amazonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Labradorite and Amazonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Labradorite and Amazonite Optical Properties during the identification of gemstone. Specific gravity of Labradorite is 2.55-2.57 whereas that of Amazonite is 2.55-2.57.