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Topaz
Topaz

Caledonite
Caledonite



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Topaz and Caledonite Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.49-3.575.6-5.76
Amber
1 7.18
1.5 Fracture
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)
1.6 Cleavage
[001] Perfect
[001] perfect; [100] distinct
1.7 Mohs Hardness
82.5-3
Amber
2 10
1.8 Chemical Composition
Al2SiO4(F,OH)2
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

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.

  • Chemical formula of Topaz- Al2SiO4(F,OH)2
  • Chemical formula of Caledonite- Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

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.