Cassiterite and Tourmaline Physical Properties

Cassiterite

Tourmaline

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

6.86-7.032.85-3.35

1 7.18

1.5 Fracture

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

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

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

Indistinct

1.7 Mohs Hardness

6-77-7.5

2 10

1.8 Chemical Composition

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

Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.

Cassiterite and Tourmaline Chemical Formula

While comparing Cassiterite and Tourmaline 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 Tourmaline chemical formula.

Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.

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Cassiterite and Tourmaline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cassiterite and Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 2.85-3.35 whereas that of Tourmaline is 2.85-3.35.