Cassiterite and Nepheline Physical Properties

Cassiterite

Nepheline

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Physical Properties

Tenacity

Brittle

Solubility

insoluble

Durability

Specific Gravity

6.86-7.032.55-2.65

1 7.18

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Fracture

Subconchoidal, Uneven, Conchoidal, Irregular

Subconchoidal, Conchoidal

Cleavage

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

[1010] Poor

Mohs Hardness

6-75-6

2 10

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Chemical Composition

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

Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

Cassiterite and Nepheline Chemical Formula

While comparing Cassiterite and Nepheline 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 Nepheline chemical formula.

Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

Compare Red Gemstones

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Cassiterite Vs Cinnabar

Cassiterite Vs Crocoite

Cassiterite and Nepheline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cassiterite and Nepheline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Nepheline Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 2.55-2.65 whereas that of Nepheline is 2.55-2.65.