Lapis lazuli and Chrome Diopside Physical Properties

Lapis lazuli

Chrome Diopside

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.50-3.003.22-3.40

1 7.18

1.5 Fracture

Uneven-Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

3,6

1,2 prismatic.

1.7 Mohs Hardness

5.55-6

2 10

1.8 Chemical Composition

The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)₈Al₆Si₆O₂₄(S,SO)₄

(Ca,Cr)MgSi 2O 6Gemdat.org , Management Team (2012)

Lapis lazuli and Chrome Diopside Chemical Formula

While comparing Lapis lazuli and Chrome Diopside 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 Chrome Diopside 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 Chrome Diopside- (Ca,Cr)MgSi 2O 6Gemdat.org , Management Team (2012)

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Lapis lazuli and Chrome Diopside Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lapis lazuli and Chrome Diopside Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lapis lazuli and Chrome Diopside Optical Properties during the identification of gemstone. Specific gravity of Lapis lazuli is 3.22-3.40 whereas that of Chrome Diopside is 3.22-3.40.