Omphacite and Poldervaartite Physical Properties

Omphacite

Poldervaartite

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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

3.16-3.432.91

1 7.18

1.5 Fracture

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

Handbook of mineralogy (2001)

1.6 Cleavage

{110} Good, {110} Good

None

1.7 Mohs Hardness

5-6Not Available

2 10

1.8 Chemical Composition

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

(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)

Omphacite and Poldervaartite Chemical Formula

While comparing Omphacite and Poldervaartite 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 Poldervaartite chemical formula.

Chemical formula of Omphacite- (Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)

Compare Green Gemstones

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Omphacite and Poldervaartite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Omphacite and Poldervaartite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Omphacite and Poldervaartite Optical Properties during the identification of gemstone. Specific gravity of Omphacite is 2.91 whereas that of Poldervaartite is 2.91.