Caledonite and Zincite Physical Properties

Caledonite

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

5.6-5.765.50-5.90

1 7.18

1.5 Fracture

Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

[001] perfect; [100] distinct

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

1.7 Mohs Hardness

2.5-34

2 10

1.8 Chemical Composition

Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

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

Caledonite and Zincite Chemical Formula

While comparing Caledonite 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 Caledonite and Zincite chemical formula.

Chemical formula of Caledonite- Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Zincite- (Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Caledonite and Zincite Specific Gravity

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