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Faustite
Faustite

Crocoite
Crocoite



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Faustite
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Crocoite

Faustite and Crocoite Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.95.90-6.10
Amber
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
Amber
2 10
1.8 Chemical Composition
(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)
PbCrO 4Michael O’Donoghue , 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 O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Crocoite- PbCrO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

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.