Rutile and Lazurite Physical Properties

Rutile

Lazurite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Insoluble in acids

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

4.20-4.302.75

1 7.18

1.5 Fracture

Uneven, ConchoidalArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

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

Imperfect on {110}

1.7 Mohs Hardness

6-6.55.5

2 10

1.8 Chemical Composition

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

(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

Rutile and Lazurite Chemical Formula

While comparing Rutile and Lazurite 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 Lazurite chemical formula.

Chemical formula of Rutile- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

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Rutile and Lazurite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rutile and Lazurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rutile and Lazurite Optical Properties during the identification of gemstone. Specific gravity of Rutile is 2.75 whereas that of Lazurite is 2.75.