Cavansite and Ettringite Physical Properties

Cavansite

Ettringite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

Partially soluble in water

1.3 Durability

Not Available

1.4 Specific Gravity

2.25-2.331.77

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic

Not Available

1.6 Cleavage

Good on {010}

Perfect on {10 1 0}

1.7 Mohs Hardness

3-42-2.5

2 10

1.8 Chemical Composition

Ca(VO)Si4O10•4(H2O)

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

Cavansite and Ettringite Chemical Formula

While comparing Cavansite 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 Cavansite and Ettringite chemical formula.

Chemical formula of Cavansite- Ca(VO)Si4O10•4(H2O)
Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Cavansite and Ettringite Specific Gravity

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