Ettringite and Hypersthene Physical Properties

Ettringite

Hypersthene

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Partially soluble in water

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.773.45-3.55

1 7.18

1.5 Fracture

Not Available

Uneven

1.6 Cleavage

Perfect on {10 1 0}

{100} Perfect, {010} Perfect

1.7 Mohs Hardness

2-2.55-6

2 10

1.8 Chemical Composition

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

(Fe,Mg) 2Si 2O 6Ulrich Henn and Claudio C.

Ettringite and Hypersthene Chemical Formula

While comparing Ettringite and Hypersthene 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 Hypersthene chemical formula.

Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Hypersthene- (Fe,Mg) 2Si 2O 6Ulrich Henn and Claudio C.

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Ettringite and Hypersthene Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ettringite and Hypersthene Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ettringite and Hypersthene Optical Properties during the identification of gemstone. Specific gravity of Ettringite is 3.45-3.55 whereas that of Hypersthene is 3.45-3.55.