Dravite and Moonstone Physical Properties

Dravite

Moonstone

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.03-3.182.56-2.60

1 7.18

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Fracture

Uneven, Irregular, Conchoidal

Uneven, ConchoidalWalter Schumann

Cleavage

{???} Indistinct

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

Mohs Hardness

7-7.56-6.5

2 10

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Chemical Composition

Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

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

Dravite and Moonstone Chemical Formula

While comparing Dravite 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 Dravite and Moonstone chemical formula.

Chemical formula of Dravite- Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈

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Dravite and Moonstone Specific Gravity

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