Pyrope and Rutile Physical Properties

Pyrope

Rutile

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

insoluble in water

Insoluble in acids

1.3 Durability

Not Available

1.4 Specific Gravity

3.62-3.874.20-4.30

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

None

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

1.7 Mohs Hardness

7-7.56-6.5

2 10

1.8 Chemical Composition

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

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

Pyrope and Rutile Chemical Formula

While comparing Pyrope 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 Pyrope and Rutile chemical formula.

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

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Pyrope and Rutile Specific Gravity

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