Omphacite and Zincite Physical Properties

Omphacite

Zincite

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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

3.16-3.435.50-5.90

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

{110} Good, {110} Good

On {10 1 0}, perfect; parting on {000 1 }

1.7 Mohs Hardness

5-64

2 10

1.8 Chemical Composition

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

(Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)

Omphacite and Zincite Chemical Formula

While comparing Omphacite and Zincite 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 Zincite chemical formula.

Chemical formula of Omphacite- (Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Zincite- (Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Omphacite and Zincite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Omphacite and Zincite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Omphacite and Zincite Optical Properties during the identification of gemstone. Specific gravity of Omphacite is 5.50-5.90 whereas that of Zincite is 5.50-5.90.