Rutile and Pyrope Physical Properties

Rutile

Pyrope

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Insoluble in acids

insoluble in water

1.3 Durability

Not Available

1.4 Specific Gravity

4.20-4.303.62-3.87

1 7.18

1.5 Fracture

Uneven, ConchoidalArthur Thomas, Gemstones (2009)

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

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

None

1.7 Mohs Hardness

6-6.57-7.5

2 10

1.8 Chemical Composition

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

Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Rutile and Pyrope Chemical Formula

While comparing Rutile and Pyrope 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 Rutile and Pyrope chemical formula.

Chemical formula of Rutile- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Pyrope- Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Rutile and Pyrope Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rutile and Pyrope Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rutile and Pyrope Optical Properties during the identification of gemstone. Specific gravity of Rutile is 3.62-3.87 whereas that of Pyrope is 3.62-3.87.