Faustite and Sard Physical Properties

Faustite

Sard

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.92.58-2.63

1 7.18

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

{???} Indistinct

Not Available

1.7 Mohs Hardness

4.56.5-7

2 10

1.8 Chemical Composition

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

SiO 2Ulrich Henn and Claudio C.

Faustite and Sard Chemical Formula

While comparing Faustite and Sard 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 Sard 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 Sard- SiO 2Ulrich Henn and Claudio C.

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Faustite and Sard Specific Gravity

Another important criteria for qualitative analysis of gemstones is Faustite and Sard Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Faustite and Sard Optical Properties during the identification of gemstone. Specific gravity of Faustite is 2.58-2.63 whereas that of Sard is 2.58-2.63.