Lazulite and Moonstone Physical Properties

Lazulite

Moonstone

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.04-3.172.56-2.60

1 7.18

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Fracture

Uneven

Uneven, ConchoidalWalter Schumann

Cleavage

{001} Indistinct, {???} Indistinct

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

Mohs Hardness

5.56-6.5

2 10

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Chemical Composition

(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

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

Lazulite and Moonstone Chemical Formula

While comparing Lazulite 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 Lazulite and Moonstone chemical formula.

Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈

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Lazulite and Moonstone Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lazulite and Moonstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazulite and Moonstone Optical Properties during the identification of gemstone. Specific gravity of Lazulite is 2.56-2.60 whereas that of Moonstone is 2.56-2.60.