Lapis lazuli and Hexagonite Physical Properties

Lapis lazuli

Hexagonite

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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

2.50-3.002.98-3.03

1 7.18

1.5 Fracture

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

Uneven

1.6 Cleavage

3,6

[110] perfect; [010] distinct

1.7 Mohs Hardness

5.55-6

2 10

1.8 Chemical Composition

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

Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.

Lapis lazuli and Hexagonite Chemical Formula

While comparing Lapis lazuli and Hexagonite 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 Hexagonite 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 Hexagonite- Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.

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Lapis lazuli and Hexagonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lapis lazuli and Hexagonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lapis lazuli and Hexagonite Optical Properties during the identification of gemstone. Specific gravity of Lapis lazuli is 2.98-3.03 whereas that of Hexagonite is 2.98-3.03.