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Crocoite
Crocoite

Pumpellyite
Pumpellyite



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Crocoite
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Pumpellyite

Crocoite and Pumpellyite Physical Properties

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
5.90-6.103.20-3.30
Amber
1 7.18
1.5 Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).
Not Available
1.6 Cleavage
{110} Distinct, {001} Indistinct, {100} Indistinct
Not Available
1.7 Mohs Hardness
2.5-35-6
Amber
2 10
1.8 Chemical Composition
PbCrO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Ca 2(Mg,Fe,Mn,Al) 2(SiO 4)(Si 2O 7)(OH) 2 · H 2OUlrich Henn and Claudio C.

Crocoite and Pumpellyite Chemical Formula

While comparing Crocoite and Pumpellyite 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 Crocoite and Pumpellyite chemical formula.

  • Chemical formula of Crocoite- PbCrO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Pumpellyite- Ca 2(Mg,Fe,Mn,Al) 2(SiO 4)(Si 2O 7)(OH) 2 · H 2OUlrich Henn and Claudio C.

Crocoite and Pumpellyite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Crocoite and Pumpellyite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Crocoite and Pumpellyite Optical Properties during the identification of gemstone. Specific gravity of Crocoite is 3.20-3.30 whereas that of Pumpellyite is 3.20-3.30.