Amethyst and Rutile Physical Properties

Amethyst

Rutile

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

insoluble in common solvents

Insoluble in acids

1.3 Durability

Not Available

1.4 Specific Gravity

2.654.20-4.30

1 7.18

1.5 Fracture

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Indiscernible

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

1.7 Mohs Hardness

76-6.5

2 10

1.8 Chemical Composition

SiO₂

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

Amethyst and Rutile Chemical Formula

While comparing Amethyst 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 Amethyst and Rutile chemical formula.

Chemical formula of Amethyst- SiO₂
Chemical formula of Rutile- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Amethyst and Rutile Specific Gravity

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