Humite and Cassiterite Physical Properties

Humite

Cassiterite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble

Durability

Specific Gravity

3.20-3.326.86-7.03

1 7.18

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Fracture

Uneven, Conchoidal

Subconchoidal, Uneven, Conchoidal, Irregular

Cleavage

Poor

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

Mohs Hardness

6-6.56-7

2 10

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Chemical Composition

(Mg,Fe2+ ) 7(SiO 4) 3(F,OH) 2Anthony et al , Handbook of mineralogy (2001)

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

Humite and Cassiterite Chemical Formula

While comparing Humite 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 Humite and Cassiterite chemical formula.

Chemical formula of Humite- (Mg,Fe2+ ) 7(SiO 4) 3(F,OH) 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Humite and Cassiterite Specific Gravity

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