Moldavite and Labradorite Physical Properties

Moldavite

Labradorite

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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

2.32-2.38

2.69-2.72

1.5 Fracture

ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)

Uneven, Conchoidal, Gems, Sixth Edition (2006)

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

5.5

6-6.5

1.8 Chemical Composition

SiO 2(+Al 2O 3)Walter Schumann , Gemstones of the world (2001)

(Na,Ca)_1-2Si_3-2O₈

Moldavite and Labradorite Chemical Formula

While comparing Moldavite and Labradorite 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 Moldavite and Labradorite chemical formula.

Chemical formula of Moldavite- SiO 2(+Al 2O 3)Walter Schumann , Gemstones of the world (2001)
Chemical formula of Labradorite- (Na,Ca)_1-2Si_3-2O₈

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Moldavite and Labradorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Moldavite and Labradorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Moldavite and Labradorite Optical Properties during the identification of gemstone. Specific gravity of Moldavite is 2.69-2.72 whereas that of Labradorite is 2.69-2.72.