Cassiterite and Lazulite Physical Properties

Cassiterite

Lazulite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble

Durability

Specific Gravity

6.86-7.033.04-3.17

1 7.18

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Fracture

Subconchoidal, Uneven, Conchoidal, Irregular

Uneven

Cleavage

{100} imperfect, {110} indistinct; partings on {111} or {011}

{001} Indistinct, {???} Indistinct

Mohs Hardness

6-75.5

2 10

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Chemical Composition

SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Cassiterite and Lazulite Chemical Formula

While comparing Cassiterite and Lazulite 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 Cassiterite and Lazulite chemical formula.

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

Compare Red Gemstones

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Cassiterite Vs Crocoite

Cassiterite and Lazulite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cassiterite and Lazulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Lazulite Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 3.04-3.17 whereas that of Lazulite is 3.04-3.17.