Tourmaline and Cassiterite Physical Properties

Tourmaline

Cassiterite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.85-3.356.86-7.03

1 7.18

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

Indistinct

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

1.7 Mohs Hardness

7-7.56-7

2 10

1.8 Chemical Composition

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

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

Tourmaline and Cassiterite Chemical Formula

While comparing Tourmaline 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 Tourmaline and Cassiterite chemical formula.

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

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Tourmaline and Cassiterite Specific Gravity

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