Lapis lazuli and Mellite Physical Properties

Lapis lazuli

Mellite

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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

2.50-3.001.58-1.60

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

3,6

{011} Imperfect

1.7 Mohs Hardness

5.52

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 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

Lapis lazuli and Mellite Chemical Formula

While comparing Lapis lazuli and Mellite 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 Mellite 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 Mellite- Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

Compare Gems for Sagittarius

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Lapis lazuli Vs Sodalite

Lapis lazuli and Mellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lapis lazuli and Mellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lapis lazuli and Mellite Optical Properties during the identification of gemstone. Specific gravity of Lapis lazuli is 1.58-1.60 whereas that of Mellite is 1.58-1.60.