Lazurite and Caledonite Physical Properties

Lazurite

Caledonite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

Brittle

Soluble

2.75

Uneven, Conchoidal

Imperfect on {110}

5.5

(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

Brittle

5.6-5.76

Uneven

[001] perfect; [100] distinct

2.5-3

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

Lazurite and Caledonite Chemical Formula

While comparing Lazurite 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 Lazurite and Caledonite chemical formula.

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Lazurite and Caledonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lazurite and Caledonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazurite Vs Caledonite during the identification of gemstone. Specific gravity of Lazurite is whereas that of Caledonite is .