Moonstone and Goethite Physical Properties

Moonstone

Goethite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

HCl soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.56-2.604.27-4.29

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)

Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).

1.6 Cleavage

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

Perfect {010}

1.7 Mohs Hardness

6-6.55-5.5

2 10

1.8 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 Lehsunia

Moonstone Vs Peridot

Moonstone Vs Alexandrite

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.