Moonstone and Galena Physical Properties

Moonstone

Galena

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.56-2.606.23

1 7.18

1.5 Fracture

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

Subconchoidal, Brittle, Metallic

1.6 Cleavage

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

Cubic perfect on [001], parting on [111]

1.7 Mohs Hardness

6-6.52.5-2.75

2 10

1.8 Chemical Composition

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

PbS

Moonstone and Galena Chemical Formula

While comparing Moonstone and Galena 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 Galena chemical formula.

Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈
Chemical formula of Galena- PbS

Compare Semi Precious Gemstones

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Moonstone Vs Alexandrite

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Moonstone and Galena Specific Gravity

Another important criteria for qualitative analysis of gemstones is Moonstone and Galena Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Moonstone and Galena Optical Properties during the identification of gemstone. Specific gravity of Moonstone is 6.23 whereas that of Galena is 6.23.