Riebeckite and Cassiterite Physical Properties

Riebeckite

Cassiterite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble

Durability

Specific Gravity

3.28-3.446.86-7.03

1 7.18

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Fracture

Uneven, Splintery

Subconchoidal, Uneven, Conchoidal, Irregular

Cleavage

Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}

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

Mohs Hardness

5.0-6.06-7

2 10

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Chemical Composition

Na2Fe2+3Fe3+2Si8O22(OH)2

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

Riebeckite and Cassiterite Chemical Formula

While comparing Riebeckite 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 Riebeckite and Cassiterite chemical formula.

Chemical formula of Riebeckite- Na2Fe2+3Fe3+2Si8O22(OH)2
Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Riebeckite and Cassiterite Specific Gravity

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