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Piemontite
Piemontite

Lazulite
Lazulite



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Piemontite
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Lazulite

Piemontite and Lazulite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
-9999
Uneven, Splintery
[001] good, [100] distinct
6-6.5
Ca2Al3(SiO4)(Si2O7)O(OH)
 
-
-
-
3.04-3.17
Uneven
{001} Indistinct, {???} Indistinct
5.5
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

Piemontite and Lazulite Chemical Formula

While comparing Piemontite and Lazulite 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 Piemontite and Lazulite chemical formula.

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Piemontite and Lazulite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Piemontite and Lazulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Piemontite Vs Lazulite during the identification of gemstone. Specific gravity of Piemontite is whereas that of Lazulite is .