Cassiterite and Staurolite Physical Properties

Cassiterite

Staurolite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble

Durability

Specific Gravity

6.86-7.033.7-3.8

1 7.18

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Fracture

Subconchoidal, Uneven, Conchoidal, Irregular

Subconchoidal, Conchoidal

Cleavage

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

Distinct on {010}

Mohs Hardness

6-77-7.5

2 10

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Chemical Composition

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

(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.

Cassiterite and Staurolite Chemical Formula

While comparing Cassiterite and Staurolite 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 Staurolite chemical formula.

Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Staurolite- (Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.

Compare Red Gemstones

Cassiterite Vs Chrome-Chalcedony

Cassiterite Vs Cinnabar

Cassiterite Vs Crocoite

Cassiterite and Staurolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cassiterite and Staurolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Staurolite Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 3.7-3.8 whereas that of Staurolite is 3.7-3.8.