Anorthite and Moonstone Physical Properties

Anorthite

Moonstone

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

Brittle

2.77

Uneven

Perfect [001] good [010] poor [110]

6-6.5

CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Anorthite and Moonstone Chemical Formula

While comparing Anorthite 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 Anorthite and Moonstone chemical formula.

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Anorthite and Moonstone Specific Gravity

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