Moonstone and Pyromorphite Physical Properties

Moonstone

Pyromorphite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.56-2.606.5-7.1

1 7.18

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Fracture

Uneven, ConchoidalWalter Schumann

Uneven, Conchoidal

Cleavage

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

Imperfect- [10 1 1]

Mohs Hardness

6-6.53.5-4

2 10

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Chemical Composition

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

Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)

Moonstone and Pyromorphite Chemical Formula

While comparing Moonstone and Pyromorphite 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 Pyromorphite chemical formula.

Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈
Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)

Compare Semi Precious Gemstones

Moonstone Vs Rubellite

Moonstone Vs Schorlomite

Moonstone Vs Simpsonite

Moonstone and Pyromorphite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Moonstone and Pyromorphite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Moonstone and Pyromorphite Optical Properties during the identification of gemstone. Specific gravity of Moonstone is 6.5-7.1 whereas that of Pyromorphite is 6.5-7.1.