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Lapis lazuli
Lapis lazuli

Triplite
Triplite



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Lapis lazuli
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Triplite

Lapis lazuli and Triplite 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
2.50-3.003.85-3.94
Amber
1 7.18
1.5 Fracture
Uneven-Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Uneven
1.6 Cleavage
3,6
{010} Good, {100} Distinct
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
(Mn2+ ,Fe2+ ,Mg,Ca) 2(PO 4)(F,OH)Michael O’Donoghue , Gems, Sixth Edition (2006)

Lapis lazuli and Triplite Chemical Formula

While comparing Lapis lazuli and Triplite 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 Triplite 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 Triplite- (Mn2+ ,Fe2+ ,Mg,Ca) 2(PO 4)(F,OH)Michael O’Donoghue , Gems, Sixth Edition (2006)

Lapis lazuli and Triplite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lapis lazuli and Triplite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lapis lazuli and Triplite Optical Properties during the identification of gemstone. Specific gravity of Lapis lazuli is 3.85-3.94 whereas that of Triplite is 3.85-3.94.