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Pyromorphite and Crocoite Physical Properties


Crocoite and Pyromorphite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
6.5-7.1   
5.90-6.10   

Fracture
Uneven, ConchoidalArthur Thomas, Brittle, Metallic   
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).   

Cleavage
Imperfect- [10 1 1]   
{110} Distinct, {001} Indistinct, {100} Indistinct   

Mohs Hardness
3.5-4   
2.5-3   

Chemical Composition
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)   
PbCrO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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Pyromorphite and Crocoite Chemical Formula

While comparing Pyromorphite 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 Pyromorphite and Crocoite chemical formula.

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Pyromorphite and Crocoite Specific Gravity

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

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