Moonstone and Astrophyllite Physical Properties

Moonstone

Astrophyllite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.56-2.603.2-3.4

1 7.18

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Fracture

Uneven, ConchoidalWalter Schumann

Uneven

Cleavage

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

Perfect on [001] imperfect on [100]

Mohs Hardness

6-6.53

2 10

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Chemical Composition

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

(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)

Moonstone and Astrophyllite Chemical Formula

While comparing Moonstone and Astrophyllite 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 Moonstone and Astrophyllite chemical formula.

Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈
Chemical formula of Astrophyllite- (K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)

Compare Semi Precious Gemstones

Moonstone Vs Rubellite

Moonstone Vs Schorlomite

Moonstone Vs Simpsonite

Moonstone and Astrophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Moonstone and Astrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Moonstone and Astrophyllite Optical Properties during the identification of gemstone. Specific gravity of Moonstone is 3.2-3.4 whereas that of Astrophyllite is 3.2-3.4.