Lapis lazuli and Marialite Physical Properties

Lapis lazuli

Marialite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.50-3.002.50

1 7.18

2.7 Fracture

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

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

2.8 Cleavage

3,6

Distinct on {100} and {110}

2.9 Mohs Hardness

5.55.5-6

2 10

2.13 Chemical Composition

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

3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)

Lapis lazuli and Marialite Chemical Formula

While comparing Lapis lazuli and Marialite 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 Marialite 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 Marialite- 3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)

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Lapis lazuli and Marialite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lapis lazuli and Marialite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lapis lazuli and Marialite Optical Properties during the identification of gemstone. Specific gravity of Lapis lazuli is 2.50 whereas that of Marialite is 2.50.