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Datolite
Datolite

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Topaz



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Datolite and Topaz Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.90-3.00
3.49-3.57
1.5 Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
1.6 Cleavage
None
[001] Perfect
1.7 Mohs Hardness
5-5.5
8
1.8 Chemical Composition
CaBSiO 4(OH)Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Al2SiO4(F,OH)2

Datolite and Topaz Chemical Formula

While comparing Datolite and Topaz 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 Datolite and Topaz chemical formula.

  • Chemical formula of Datolite- CaBSiO 4(OH)Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Topaz- Al2SiO4(F,OH)2

Datolite and Topaz Specific Gravity

Another important criteria for qualitative analysis of gemstones is Datolite and Topaz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Datolite and Topaz Optical Properties during the identification of gemstone. Specific gravity of Datolite is 3.49-3.57 whereas that of Topaz is 3.49-3.57.