Galena and Moonstone Physical Properties

Galena

Moonstone

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

6.232.56-2.60

1 7.18

1.5 Fracture

Subconchoidal, Brittle, Metallic

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

1.6 Cleavage

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

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

1.7 Mohs Hardness

2.5-2.756-6.5

2 10

1.8 Chemical Composition

PbS

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

Galena and Moonstone Chemical Formula

While comparing Galena 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 Galena and Moonstone chemical formula.

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

Compare Grey Gemstones

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Galena Vs Clinochlore

Galena Vs Falcons Eye

Galena and Moonstone Specific Gravity

Another important criteria for qualitative analysis of gemstones is Galena and Moonstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Galena and Moonstone Optical Properties during the identification of gemstone. Specific gravity of Galena is 2.56-2.60 whereas that of Moonstone is 2.56-2.60.