Lazulite and Cerussite Physical Properties

Lazulite

Cerussite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.04-3.176.46-6.57

1 7.18

1.5 Fracture

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

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal

1.6 Cleavage

{001} Indistinct, {???} Indistinct

Good [110] and [021]

1.7 Mohs Hardness

5.53-3.5

2 10

1.8 Chemical Composition

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

PbCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Lazulite and Cerussite Chemical Formula

While comparing Lazulite and Cerussite 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 Cerussite 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 Cerussite- PbCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Lazulite and Cerussite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lazulite and Cerussite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazulite and Cerussite Optical Properties during the identification of gemstone. Specific gravity of Lazulite is 6.46-6.57 whereas that of Cerussite is 6.46-6.57.