Grandidierite and Rutile Physical Properties

Grandidierite

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

2.85-3.004.20-4.30

1 7.18

1.5 Fracture

Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven

Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Perfect

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

1.7 Mohs Hardness

7.56-6.5

2 10

1.8 Chemical Composition

(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

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

Grandidierite and Rutile Chemical Formula

While comparing Grandidierite 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 Grandidierite and Rutile chemical formula.

Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Chemical formula of Rutile- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Grandidierite and Rutile Specific Gravity

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