Omphacite and Cavansite Physical Properties

Omphacite

Cavansite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.16-3.43

2.25-2.33

1.5 Fracture

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

{110} Good, {110} Good

Good on {010}

1.7 Mohs Hardness

5-6

3-4

1.8 Chemical Composition

(Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)

Ca(VO)Si4O10•4(H2O)

Omphacite and Cavansite Chemical Formula

While comparing Omphacite and Cavansite 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 Omphacite and Cavansite chemical formula.

Chemical formula of Omphacite- (Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Cavansite- Ca(VO)Si4O10•4(H2O)

Compare Green Gemstones

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Omphacite Vs Powellite

Omphacite and Cavansite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Omphacite and Cavansite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Omphacite and Cavansite Optical Properties during the identification of gemstone. Specific gravity of Omphacite is 2.25-2.33 whereas that of Cavansite is 2.25-2.33.