Sanidine and Moonstone Physical Properties

Sanidine

Moonstone

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.54-2.612.56-2.60

1 7.18

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Fracture

Uneven

Uneven, ConchoidalWalter Schumann

Cleavage

{001} Perfect, {010} Good

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

Mohs Hardness

66-6.5

2 10

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Chemical Composition

KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Sanidine and Moonstone Chemical Formula

While comparing Sanidine 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 Sanidine and Moonstone chemical formula.

Chemical formula of Sanidine- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈

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Sanidine and Moonstone Specific Gravity

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