Cassiterite and Williamsite Physical Properties

Cassiterite

Williamsite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

Brittle

insoluble

6.86-7.03

Subconchoidal, Uneven, Conchoidal, Irregular

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

6-7

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

2.51-2.63

Conchoidal

Perfect

(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

Cassiterite and Williamsite Chemical Formula

While comparing Cassiterite and Williamsite 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 Williamsite chemical formula.

Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Williamsite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

Compare Red Gemstones

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Cassiterite Vs Cinnabar

Cassiterite Vs Crocoite

Cassiterite and Williamsite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cassiterite and Williamsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Williamsite Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 2.51-2.63 whereas that of Williamsite is 2.51-2.63.