Faustite and Crocoite Physical Properties

Faustite

Crocoite

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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

2.95.90-6.10

1 7.18

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).

1.6 Cleavage

{???} Indistinct

{110} Distinct, {001} Indistinct, {100} Indistinct

1.7 Mohs Hardness

4.52.5-3

2 10

1.8 Chemical Composition

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

PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Faustite and Crocoite Chemical Formula

While comparing Faustite and Crocoite 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 Crocoite 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 Crocoite- PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Faustite and Crocoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Faustite and Crocoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Faustite and Crocoite Optical Properties during the identification of gemstone. Specific gravity of Faustite is 5.90-6.10 whereas that of Crocoite is 5.90-6.10.