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Pyromorphite and Lazurite Physical Properties


Lazurite and Pyromorphite Physical Properties


Physical Properties

Tenacity
Brittle   
Brittle   

Solubility
Not Available   
Soluble   

Durability
Not Available   
Not Available   

Specific Gravity
6.5-7.1   
2.75   

Fracture
Uneven, ConchoidalArthur Thomas, Brittle, Metallic   
Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle   

Cleavage
Imperfect- [10 1 1]   
Imperfect on {110}   

Mohs Hardness
3.5-4   
5.5   

Chemical Composition
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)   
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.   

Optical Properties >>
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Pyromorphite and Lazurite Chemical Formula

While comparing Pyromorphite and Lazurite 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 Lazurite chemical formula.

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Pyromorphite and Lazurite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyromorphite and Lazurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Lazurite Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 2.75 whereas that of Lazurite is 2.75.

Green Gemstones

Green Gemstones


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