Faustite and Gaspeite Physical Properties

Faustite

Gaspeite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

HCl soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.93.71

1 7.18

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal

Uneven

1.6 Cleavage

{???} Indistinct

{10 1 1} Good

1.7 Mohs Hardness

4.54.5-5

2 10

1.8 Chemical Composition

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

(Ni,Mg,Fe++)CO3

Faustite and Gaspeite Chemical Formula

While comparing Faustite and Gaspeite 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 Gaspeite 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 Gaspeite- (Ni,Mg,Fe++)CO3

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Faustite and Gaspeite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Faustite and Gaspeite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Faustite and Gaspeite Optical Properties during the identification of gemstone. Specific gravity of Faustite is 3.71 whereas that of Gaspeite is 3.71.