Omphacite and Nepouite Physical Properties

Omphacite

Nepouite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.16-3.433.18-3.24

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

{110} Good, {110} Good

perfect on {001}

1.7 Mohs Hardness

5-62

2 10

1.8 Chemical Composition

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

Not Available

Omphacite and Nepouite Chemical Formula

While comparing Omphacite and Nepouite 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 Nepouite chemical formula.

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

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Omphacite and Nepouite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Omphacite and Nepouite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Omphacite and Nepouite Optical Properties during the identification of gemstone. Specific gravity of Omphacite is 3.18-3.24 whereas that of Nepouite is 3.18-3.24.