Rutile and Ettringite Physical Properties

Rutile

Ettringite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Insoluble in acids

Partially soluble in water

1.3 Durability

Not Available

1.4 Specific Gravity

4.20-4.301.77

1 7.18

1.5 Fracture

Uneven, ConchoidalArthur Thomas, Gemstones (2009)

Not Available

1.6 Cleavage

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

Perfect on {10 1 0}

1.7 Mohs Hardness

6-6.52-2.5

2 10

1.8 Chemical Composition

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

Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Rutile and Ettringite Chemical Formula

While comparing Rutile and Ettringite 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 Ettringite chemical formula.

Chemical formula of Rutile- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Rutile and Ettringite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rutile and Ettringite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rutile and Ettringite Optical Properties during the identification of gemstone. Specific gravity of Rutile is 1.77 whereas that of Ettringite is 1.77.