Tourmaline and Rutile Physical Properties

Tourmaline

Rutile

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Insoluble in acids

1.3 Durability

Not Available

1.4 Specific Gravity

2.85-3.354.20-4.30

1 7.18

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Indistinct

{110} good, 100 moderate, parting on {092} and {011}

1.7 Mohs Hardness

7-7.56-6.5

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.

TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Tourmaline and Rutile Chemical Formula

While comparing Tourmaline and Rutile 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 Rutile 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 Rutile- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Tourmaline and Rutile Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tourmaline and Rutile Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tourmaline and Rutile Optical Properties during the identification of gemstone. Specific gravity of Tourmaline is 4.20-4.30 whereas that of Rutile is 4.20-4.30.