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Lazulite
Lazulite

Cuprite
Cuprite



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Lazulite
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Cuprite

Lazulite and Cuprite Physical Properties

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Physical Properties

Tenacity

-
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

3.04-3.175.85-6.15
1 7.18
👆🏻

Fracture

Uneven
Conchoidal

Cleavage

{001} Indistinct, {???} Indistinct
Fair in four directions forming octahedrons

Mohs Hardness

5.53.5-4
2 10
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Chemical Composition

(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Cu 2OMichael O’Donoghue , 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 O’Donoghue , Gems, Sixth Edition (2006) More from other references

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.