Lazulite and Cuprite Physical Properties

Lazulite

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

3.04-3.175.85-6.15

1 7.18

1.5 Fracture

Uneven, Uneven, Gemstones of the world (2001) More from other references

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

1.6 Cleavage

{001} Indistinct, {???} Indistinct

Fair in four directions forming octahedrons

1.7 Mohs Hardness

5.53.5-4

2 10

1.8 Chemical Composition

(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

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

Lazulite and Cuprite Chemical Formula

While comparing Lazulite 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 Lazulite and Cuprite chemical formula.

Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Chemical formula of Cuprite- Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Lazulite and Cuprite Specific Gravity

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