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Lapis lazuli
Lapis lazuli

Natrolite
Natrolite



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Lapis lazuli
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Natrolite

Lapis lazuli and Natrolite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.50-3.002.20-2.26
Amber
1 7.18
1.5 Fracture
Uneven-Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
Uneven, Brittle, Metallic, Gemstones (2009)
1.6 Cleavage
3,6
Perfect on {110}
1.7 Mohs Hardness
5.55-5.5
Amber
2 10
1.8 Chemical Composition
The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)8Al6Si6O24(S,SO)4
Na 2[Al 2Si 3O 10] · 2H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Lapis lazuli and Natrolite Chemical Formula

While comparing Lapis lazuli and Natrolite 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 Lapis lazuli and Natrolite chemical formula.

  • Chemical formula of Lapis lazuli- The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)8Al6Si6O24(S,SO)4
  • Chemical formula of Natrolite- Na 2[Al 2Si 3O 10] · 2H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Lapis lazuli and Natrolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lapis lazuli and Natrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lapis lazuli and Natrolite Optical Properties during the identification of gemstone. Specific gravity of Lapis lazuli is 2.20-2.26 whereas that of Natrolite is 2.20-2.26.