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Lapis lazuli
Lapis lazuli

Fibrolite
Fibrolite



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Lapis lazuli
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Fibrolite

Lapis lazuli and Fibrolite 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
2.50-3.003.14-3.25
Amber
1 7.18
1.5 Fracture
Uneven-Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
1.6 Cleavage
3,6
Not Available
1.7 Mohs Hardness
5.56-7
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
Al 2SiO 5Arthur Thomas , Gemstones (2009)

Lapis lazuli and Fibrolite Chemical Formula

While comparing Lapis lazuli and Fibrolite 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 Fibrolite 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 Fibrolite- Al 2SiO 5Arthur Thomas , Gemstones (2009)

Lapis lazuli and Fibrolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lapis lazuli and Fibrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lapis lazuli and Fibrolite Optical Properties during the identification of gemstone. Specific gravity of Lapis lazuli is 3.14-3.25 whereas that of Fibrolite is 3.14-3.25.