Lapis lazuli and Moissanite Physical Properties

Lapis lazuli

Moissanite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

none

1.3 Durability

Not Available

1.4 Specific Gravity

2.50-3.003.17-3.24

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle

1.6 Cleavage

3,6

(0001) indistinct

1.7 Mohs Hardness

5.59-9.5

2 10

1.8 Chemical Composition

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

SiCArthur Thomas , Gemstones (2009)

Lapis lazuli and Moissanite Chemical Formula

While comparing Lapis lazuli and Moissanite 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 Moissanite 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 Moissanite- SiCArthur Thomas , Gemstones (2009)

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Lapis lazuli and Moissanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lapis lazuli and Moissanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lapis lazuli and Moissanite Optical Properties during the identification of gemstone. Specific gravity of Lapis lazuli is 3.17-3.24 whereas that of Moissanite is 3.17-3.24.