Cassiterite and Ajoite Physical Properties

Cassiterite

Ajoite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

insoluble

Decomposed by acids

1.3 Durability

Not Available

1.4 Specific Gravity

6.86-7.032.96

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

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

Perfect on {010}

1.7 Mohs Hardness

6-75

2 10

1.8 Chemical Composition

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

(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

Cassiterite and Ajoite Chemical Formula

While comparing Cassiterite and Ajoite 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 Ajoite chemical formula.

Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Ajoite- (K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

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Cassiterite and Ajoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cassiterite and Ajoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Ajoite Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 2.96 whereas that of Ajoite is 2.96.