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Caledonite and Allanite Physical Properties


Allanite and Caledonite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
5.6-5.76   
3.40-4.20   

Fracture
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)   
Not Available   

Cleavage
[001] perfect; [100] distinct   
Not Available   

Mohs Hardness
2.5-3   
Not Available   

Chemical Composition
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)   
Not Available   

Optical Properties >>
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Caledonite and Allanite Chemical Formula

While comparing Caledonite and Allanite 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 Allanite chemical formula.

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Caledonite and Allanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Caledonite and Allanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Caledonite and Allanite Optical Properties during the identification of gemstone. Specific gravity of Caledonite is 3.40-4.20 whereas that of Allanite is 3.40-4.20.

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