Magnesite and Cassiterite Physical Properties

Magnesite

Cassiterite

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Physical Properties

Tenacity

Brittle

Solubility

Effervesces in hot HCl

insoluble

Durability

Specific Gravity

2.92-3.126.86-7.03

1 7.18

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Fracture

Conchoidal

Subconchoidal, Uneven, Conchoidal, Irregular

Cleavage

[10 1 1] perfect

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

Mohs Hardness

3.5-4.56-7

2 10

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Chemical Composition

MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Magnesite and Cassiterite Chemical Formula

While comparing Magnesite 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 Magnesite and Cassiterite chemical formula.

Chemical formula of Magnesite- MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Magnesite and Cassiterite Specific Gravity

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