Andradite and Cuprite Physical Properties

Andradite

Cuprite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.70-4.105.85-6.15

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

none

Fair in four directions forming octahedrons

1.7 Mohs Hardness

6.5-73.5-4

2 10

1.8 Chemical Composition

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

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

Andradite and Cuprite Chemical Formula

While comparing Andradite 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 Andradite and Cuprite chemical formula.

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

Compare Green Gemstones

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Andradite Vs Astrophyllite

Andradite and Cuprite Specific Gravity

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