Faustite and Moonstone Physical Properties

Faustite

Moonstone

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.92.56-2.60

1 7.18

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Fracture

Conchoidal

Uneven, ConchoidalWalter Schumann

Cleavage

{???} Indistinct

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

Mohs Hardness

4.56-6.5

2 10

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Chemical Composition

(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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

Faustite and Moonstone Chemical Formula

While comparing Faustite 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 Faustite and Moonstone chemical formula.

Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈

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Faustite and Moonstone Specific Gravity

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