Piemontite and Omphacite Physical Properties

Piemontite

Omphacite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available3.16-3.43

1 7.18

1.5 Fracture

Uneven, Splintery

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

1.6 Cleavage

[001] good, [100] distinct

{110} Good, {110} Good

1.7 Mohs Hardness

6-6.55-6

2 10

1.8 Chemical Composition

Not Available

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

Piemontite and Omphacite Chemical Formula

While comparing Piemontite and Omphacite 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 Piemontite and Omphacite chemical formula.

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

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Piemontite and Omphacite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Piemontite and Omphacite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Piemontite and Omphacite Optical Properties during the identification of gemstone. Specific gravity of Piemontite is 3.16-3.43 whereas that of Omphacite is 3.16-3.43.