Labradorite and Cobaltite Physical Properties

Labradorite

Cobaltite

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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

2.69-2.726.3

1 7.18

1.5 Fracture

Uneven, Conchoidal, Gems, Sixth Edition (2006)

UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic

1.6 Cleavage

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

{100} Good, {010} Good, {001} Good

1.7 Mohs Hardness

6-6.55.5

2 10

1.8 Chemical Composition

(Na,Ca)_1-2Si_3-2O₈

CoAsSAnthony et al , Handbook of mineralogy (2001)

Labradorite and Cobaltite Chemical Formula

While comparing Labradorite and Cobaltite 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 Cobaltite chemical formula.

Chemical formula of Labradorite- (Na,Ca)_1-2Si_3-2O₈
Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)

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Labradorite and Cobaltite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Labradorite and Cobaltite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Labradorite and Cobaltite Optical Properties during the identification of gemstone. Specific gravity of Labradorite is 6.3 whereas that of Cobaltite is 6.3.