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Datolite
Datolite

Chalcedony
Chalcedony



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Datolite and Chalcedony Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Soluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.90-3.00
2.55-2.70
1.5 Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann
1.6 Cleavage
None
Absent
1.7 Mohs Hardness
5-5.5
6.5-7
1.8 Chemical Composition
CaBSiO 4(OH)Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
SiO2

Datolite and Chalcedony Chemical Formula

While comparing Datolite and Chalcedony 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 Chalcedony chemical formula.

  • Chemical formula of Datolite- CaBSiO 4(OH)Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Chalcedony- SiO2

Datolite and Chalcedony Specific Gravity

Another important criteria for qualitative analysis of gemstones is Datolite and Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Datolite and Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Datolite is 2.55-2.70 whereas that of Chalcedony is 2.55-2.70.