Zincite and Sellaite Physical Properties

Zincite

Sellaite

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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

5.50-5.903.14-3.16

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

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

1.6 Cleavage

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

Perfect on {010} and {110}

1.7 Mohs Hardness

45-5.5

2 10

1.8 Chemical Composition

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

MgF 2Ulrich Henn and Claudio C.

Zincite and Sellaite Chemical Formula

While comparing Zincite and Sellaite 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 Zincite and Sellaite chemical formula.

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

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Zincite and Sellaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Zincite and Sellaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zincite and Sellaite Optical Properties during the identification of gemstone. Specific gravity of Zincite is 3.14-3.16 whereas that of Sellaite is 3.14-3.16.