Caledonite and Smithsonite Physical Properties

Caledonite

Smithsonite

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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

5.6-5.764.00-4.65

1 7.18

1.5 Fracture

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

Uneven, Sub-Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic

1.6 Cleavage

[001] perfect; [100] distinct

Perfect on [1011]

1.7 Mohs Hardness

2.5-35-5.5

2 10

1.8 Chemical Composition

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

ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Caledonite and Smithsonite Chemical Formula

While comparing Caledonite and Smithsonite 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 Smithsonite 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 Smithsonite- ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Caledonite Vs Common Opal

Caledonite and Smithsonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Caledonite and Smithsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Caledonite and Smithsonite Optical Properties during the identification of gemstone. Specific gravity of Caledonite is 4.00-4.65 whereas that of Smithsonite is 4.00-4.65.