Cassiterite and Magnesite Physical Properties

Cassiterite

Magnesite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

insoluble

Effervesces in hot HCl

1.3 Durability

Not Available

1.4 Specific Gravity

6.86-7.032.92-3.12

1 7.18

1.5 Fracture

Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

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

[10 1 1] perfect

1.7 Mohs Hardness

6-73.5-4.5

2 10

1.8 Chemical Composition

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

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

Cassiterite and Magnesite Chemical Formula

While comparing Cassiterite and Magnesite 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 Magnesite chemical formula.

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

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Cassiterite and Magnesite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cassiterite and Magnesite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Magnesite Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 2.92-3.12 whereas that of Magnesite is 2.92-3.12.