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Topaz and Caledonite Physical Properties


Caledonite and Topaz Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.49-3.57   
5.6-5.76   

Fracture
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle   
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)   

Cleavage
[001] Perfect   
[001] perfect; [100] distinct   

Mohs Hardness
8   
2.5-3   

Chemical Composition
Al2SiO4(F,OH)2   
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)   

Optical Properties >>
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Topaz and Caledonite Chemical Formula

While comparing Topaz 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 Topaz and Caledonite chemical formula.

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Topaz and Caledonite Specific Gravity

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

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