Wulfenite and Caledonite Physical Properties

Wulfenite

Caledonite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

6.50-7.005.6-5.76

1 7.18

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Fracture

Irregular, Conchoidal

Uneven

Cleavage

On {011}, distinct; on {001}, {013}, indistinct

[001] perfect; [100] distinct

Mohs Hardness

32.5-3

2 10

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Chemical Composition

PbMoO 4Walter Schumann , Gemstones of the world (2001)

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

Wulfenite and Caledonite Chemical Formula

While comparing Wulfenite and Caledonite 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 Wulfenite and Caledonite chemical formula.

Chemical formula of Wulfenite- PbMoO 4Walter Schumann , Gemstones of the world (2001)
Chemical formula of Caledonite- Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

Compare Red Gemstones

Wulfenite Vs Pezzotaite

Wulfenite Vs Pyrope Almandine

Wulfenite Vs Pyrope Garnet

Wulfenite and Caledonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Wulfenite and Caledonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Wulfenite and Caledonite Optical Properties during the identification of gemstone. Specific gravity of Wulfenite is 5.6-5.76 whereas that of Caledonite is 5.6-5.76.