Forsterite and Moonstone Physical Properties

Forsterite

Moonstone

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.23-3.262.56-2.60

1 7.18

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Fracture

Conchoidal

Uneven, ConchoidalWalter Schumann

Cleavage

Perfect on {010} imperfect on {100}

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

Mohs Hardness

6.5-76-6.5

2 10

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Chemical Composition

Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Forsterite and Moonstone Chemical Formula

While comparing Forsterite 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 Forsterite and Moonstone chemical formula.

Chemical formula of Forsterite- Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈

Compare Green Gemstones

Forsterite Vs Grossular

Forsterite Vs Hayne

Forsterite Vs Hemimorphite

Forsterite and Moonstone Specific Gravity

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