Ettringite and Tremolite Physical Properties

Ettringite

Tremolite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Partially soluble in water

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.772.95-3.07

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Perfect on {10 1 0}

Perfect on {110} at 56° and 124°; partings on {010} and {100}

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)

Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.

Ettringite and Tremolite Chemical Formula

While comparing Ettringite and Tremolite 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 Tremolite chemical formula.

Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Tremolite- Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.

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Ettringite and Tremolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ettringite and Tremolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ettringite and Tremolite Optical Properties during the identification of gemstone. Specific gravity of Ettringite is 2.95-3.07 whereas that of Tremolite is 2.95-3.07.