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Opal
Opal

Datolite
Datolite



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Opal
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Datolite

Opal and Datolite Physical Properties

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1 Physical Properties
1.1 Tenacity
BrittleWalter Schumann
Brittle
1.2 Solubility
hot salt water
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.98-2.252.90-3.00
Amber
1 7.18
1.5 Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic
1.6 Cleavage
None
None
1.7 Mohs Hardness
5-6.55-5.5
Amber
2 10
1.8 Chemical Composition
SiO2 · nH2O
CaBSiO 4(OH)Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Opal and Datolite Chemical Formula

While comparing Opal and Datolite 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 Opal and Datolite chemical formula.

  • Chemical formula of Opal- SiO2 · nH2O
  • Chemical formula of Datolite- CaBSiO 4(OH)Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Opal and Datolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Opal and Datolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Opal and Datolite Optical Properties during the identification of gemstone. Specific gravity of Opal is 2.90-3.00 whereas that of Datolite is 2.90-3.00.