Zincite and Hibonite Physical Properties

Zincite

Hibonite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.50-5.903.84

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

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

1.6 Cleavage

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

{0001} good, {10 1 0} parting

1.7 Mohs Hardness

47.5-8

2 10

1.8 Chemical Composition

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

(Ca,Ce)(Al,Ti,Mg)12O19

Zincite and Hibonite Chemical Formula

While comparing Zincite and Hibonite 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 Hibonite chemical formula.

Chemical formula of Zincite- (Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19

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Zincite and Hibonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Zincite and Hibonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zincite and Hibonite Optical Properties during the identification of gemstone. Specific gravity of Zincite is 3.84 whereas that of Hibonite is 3.84.