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Cryolite
Cryolite

Lazurite
Lazurite



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Cryolite and Lazurite Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Soluble
Soluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.97
2.75
1.5 Fracture
Uneven
Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
1.6 Cleavage
None observed
Imperfect on {110}
1.7 Mohs Hardness
2.5
5.5
1.8 Chemical Composition
Na 3AlF 6Ulrich Henn and Claudio C.
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

Cryolite and Lazurite Chemical Formula

While comparing Cryolite and Lazurite 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 Cryolite and Lazurite chemical formula.

  • Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.
  • Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

Cryolite and Lazurite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cryolite and Lazurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cryolite and Lazurite Optical Properties during the identification of gemstone. Specific gravity of Cryolite is 2.75 whereas that of Lazurite is 2.75.