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Crystal Opal
Crystal Opal

Povondraite
Povondraite



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Crystal Opal
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Povondraite

Crystal Opal and Povondraite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.97-2.223.26
Amber
1 7.18
1.5 Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
1.6 Cleavage
Not Available
None
1.7 Mohs Hardness
5.5-6.5Not Available
Amber
2 10
1.8 Chemical Composition
SiO 2 + H 2OUlrich Henn and Claudio C.
NaFe3+3Fe3+6(BO 3) 3Si 6O 18(O,OH) 4Anthony et al , Handbook of Mineralogy (2001)

Crystal Opal and Povondraite Chemical Formula

While comparing Crystal Opal and Povondraite 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 Crystal Opal and Povondraite chemical formula.

  • Chemical formula of Crystal Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
  • Chemical formula of Povondraite- NaFe3+3Fe3+6(BO 3) 3Si 6O 18(O,OH) 4Anthony et al , Handbook of Mineralogy (2001)

Crystal Opal and Povondraite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Crystal Opal and Povondraite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Crystal Opal and Povondraite Optical Properties during the identification of gemstone. Specific gravity of Crystal Opal is 3.26 whereas that of Povondraite is 3.26.