Sellaite and Zincite Physical Properties

Sellaite

Zincite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.14-3.165.50-5.90

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

Perfect on {010} and {110}

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

1.7 Mohs Hardness

5-5.54

2 10

1.8 Chemical Composition

MgF 2Ulrich Henn and Claudio C.

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

Sellaite and Zincite Chemical Formula

While comparing Sellaite 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 Sellaite and Zincite chemical formula.

Chemical formula of Sellaite- MgF 2Ulrich Henn and Claudio C.
Chemical formula of Zincite- (Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Sellaite and Zincite Specific Gravity

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