Ettringite and Rutile Physical Properties

Ettringite

Rutile

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Partially soluble in water

Insoluble in acids

1.3 Durability

Not Available

1.4 Specific Gravity

1.774.20-4.30

1 7.18

1.5 Fracture

Not Available

Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Perfect on {10 1 0}

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

1.7 Mohs Hardness

2-2.56-6.5

2 10

1.8 Chemical Composition

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

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

Ettringite and Rutile Chemical Formula

While comparing Ettringite 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 Ettringite and Rutile chemical formula.

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

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Ettringite and Rutile Specific Gravity

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