Faustite and Zinnwaldite Physical Properties

Faustite

Zinnwaldite

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1 Physical Properties

1.1 Tenacity

Not Available

Elastic

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.92.9-3.1

1 7.18

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal

Uneven

1.6 Cleavage

{???} Indistinct

Perfect basal {001}

1.7 Mohs Hardness

4.53.5-4.0

2 10

1.8 Chemical Composition

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

Not Available

Faustite and Zinnwaldite Chemical Formula

While comparing Faustite and Zinnwaldite 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 Zinnwaldite chemical formula.

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

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Faustite and Zinnwaldite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Faustite and Zinnwaldite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Faustite and Zinnwaldite Optical Properties during the identification of gemstone. Specific gravity of Faustite is 2.9-3.1 whereas that of Zinnwaldite is 2.9-3.1.