Lapis lazuli and Ekanite Physical Properties

Lapis lazuli

Ekanite

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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

2.50-3.003.28-3.32

1 7.18

1.5 Fracture

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

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven

1.6 Cleavage

3,6

{101} Distinct

1.7 Mohs Hardness

5.56-6.5

2 10

1.8 Chemical Composition

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

ThCa 2Si 8O 20Walter Schumann , Gemstones of the world (2001) More from other references

Lapis lazuli and Ekanite Chemical Formula

While comparing Lapis lazuli and Ekanite 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 Ekanite 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 Ekanite- ThCa 2Si 8O 20Walter Schumann , Gemstones of the world (2001) More from other references

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Lapis lazuli and Ekanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lapis lazuli and Ekanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lapis lazuli and Ekanite Optical Properties during the identification of gemstone. Specific gravity of Lapis lazuli is 3.28-3.32 whereas that of Ekanite is 3.28-3.32.