Cuprite and Almandine Physical Properties

Cuprite

Almandine

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.85-6.15

3.95-4.30

1.5 Fracture

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

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

1.6 Cleavage

Fair in four directions forming octahedrons

none

1.7 Mohs Hardness

3.5-4

7-7.5

1.8 Chemical Composition

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

Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Cuprite and Almandine Chemical Formula

While comparing Cuprite and Almandine 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 Cuprite and Almandine chemical formula.

Chemical formula of Cuprite- Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Cuprite and Almandine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cuprite and Almandine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cuprite and Almandine Optical Properties during the identification of gemstone. Specific gravity of Cuprite is 3.95-4.30 whereas that of Almandine is 3.95-4.30.