Lapis lazuli and Moonstone Physical Properties

Lapis lazuli

Moonstone

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

2.50-3.00

Uneven-Conchoidal, ConchoidalWalter Schumann

3,6

5.5

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

2.56-2.60

Uneven, ConchoidalWalter Schumann

2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal

6-6.5

Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈

Lapis lazuli and Moonstone Chemical Formula

While comparing Lapis lazuli and Moonstone 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 Moonstone chemical formula.

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Lapis lazuli and Moonstone Specific Gravity

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