Dumortierite and Moonstone Physical Properties

Dumortierite

Moonstone

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.26-3.412.56-2.60

1 7.18

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Fracture

Fibrous, ConchoidalWalter Schumann

Uneven, ConchoidalWalter Schumann

Cleavage

Distinct on {100}, poor on {110}; parting on {001}

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

Mohs Hardness

7-8.56-6.5

2 10

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Chemical Composition

AlAl₆O₃BSi₃O₁₈

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

Dumortierite and Moonstone Chemical Formula

While comparing Dumortierite 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 Dumortierite and Moonstone chemical formula.

Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈
Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈

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Dumortierite and Moonstone Specific Gravity

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