Plumbogummite and Zincite Physical Properties

Plumbogummite

Zincite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.0145.50-5.90

1 7.18

2.5 Fracture

Uneven, Conchoidal

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

2.6 Cleavage

None

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

2.7 Mohs Hardness

4-54

2 10

2.11 Chemical Composition

Not Available

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

Plumbogummite and Zincite Chemical Formula

While comparing Plumbogummite 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 Plumbogummite and Zincite chemical formula.

Chemical formula of Zincite- (Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Plumbogummite and Zincite Specific Gravity

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