Lazurite and Mellite Physical Properties

Lazurite

Mellite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.751.58-1.60

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Imperfect on {110}

{011} Imperfect

1.7 Mohs Hardness

5.52

2 10

1.8 Chemical Composition

(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

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

Lazurite and Mellite Chemical Formula

While comparing Lazurite 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 Lazurite and Mellite chemical formula.

Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
Chemical formula of Mellite- Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

Compare Blue Gemstones

Lazurite Vs Morion

Lazurite Vs Moss Agate

Lazurite Vs Moroxite

Lazurite and Mellite Specific Gravity

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