Faustite and Cassiterite Physical Properties

Faustite

Cassiterite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.96.86-7.03

1 7.18

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal

Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular

1.6 Cleavage

{???} Indistinct

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

1.7 Mohs Hardness

4.56-7

2 10

1.8 Chemical Composition

(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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

Faustite and Cassiterite Chemical Formula

While comparing Faustite and Cassiterite 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 Faustite and Cassiterite chemical formula.

Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Faustite and Cassiterite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Faustite and Cassiterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Faustite and Cassiterite Optical Properties during the identification of gemstone. Specific gravity of Faustite is 6.86-7.03 whereas that of Cassiterite is 6.86-7.03.