Labradorite and Cuprite Physical Properties

Labradorite

Cuprite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.69-2.725.85-6.15

1 7.18

1.5 Fracture

Uneven, Conchoidal, Gems, Sixth Edition (2006)

Conchoidal, Metallic, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal

1.6 Cleavage

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

Fair in four directions forming octahedrons

1.7 Mohs Hardness

6-6.53.5-4

2 10

1.8 Chemical Composition

(Na,Ca)_1-2Si_3-2O₈

Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Labradorite and Cuprite Chemical Formula

While comparing Labradorite and Cuprite 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 Cuprite chemical formula.

Chemical formula of Labradorite- (Na,Ca)_1-2Si_3-2O₈
Chemical formula of Cuprite- Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Labradorite and Cuprite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Labradorite and Cuprite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Labradorite and Cuprite Optical Properties during the identification of gemstone. Specific gravity of Labradorite is 5.85-6.15 whereas that of Cuprite is 5.85-6.15.