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Pargasite
Pargasite

Lazulite
Lazulite



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Pargasite
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Lazulite

Pargasite and Lazulite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
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-
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3.04-3.26
Splintery, Uneven
{110} perfect
5-6
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006)
 
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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

Pargasite and Lazulite Chemical Formula

While comparing Pargasite 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 Pargasite and Lazulite chemical formula.

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Pargasite and Lazulite Specific Gravity

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