Moonstone and Goethite Physical Properties

Moonstone

Goethite

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Physical Properties

Tenacity

Solubility

HCl soluble

Durability

Specific Gravity

2.56-2.604.27-4.29

1 7.18

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Fracture

Uneven, ConchoidalWalter Schumann

Uneven

Cleavage

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

Perfect {010}

Mohs Hardness

6-6.55-5.5

2 10

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Chemical Composition

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

FeO(OH)Arthur Thomas , Gemstones (2009)

Moonstone and Goethite Chemical Formula

While comparing Moonstone and Goethite 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 Goethite chemical formula.

Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈
Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)

Compare Semi Precious Gemstones

Moonstone Vs Rubellite

Moonstone Vs Schorlomite

Moonstone Vs Simpsonite

Moonstone and Goethite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Moonstone and Goethite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Moonstone and Goethite Optical Properties during the identification of gemstone. Specific gravity of Moonstone is 4.27-4.29 whereas that of Goethite is 4.27-4.29.