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Natrolite
Natrolite

Lazurite
Lazurite



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Natrolite
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Lazurite

Natrolite and Lazurite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Not Available
Soluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.20-2.262.75
Amber
1 7.18
1.5 Fracture
Uneven, Brittle, Metallic, Gemstones (2009)
Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
1.6 Cleavage
Perfect on {110}
Imperfect on {110}
1.7 Mohs Hardness
5-5.55.5
Amber
2 10
1.8 Chemical Composition
Na 2[Al 2Si 3O 10] · 2H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

Natrolite and Lazurite Chemical Formula

While comparing Natrolite 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 Natrolite and Lazurite chemical formula.

  • Chemical formula of Natrolite- Na 2[Al 2Si 3O 10] · 2H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

Natrolite and Lazurite Specific Gravity

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