Lazurite and Piemontite Physical Properties

Lazurite

Piemontite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.75Not Available

1 7.18

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle

Uneven, Splintery

1.6 Cleavage

Imperfect on {110}

[001] good, [100] distinct

1.7 Mohs Hardness

5.56-6.5

2 10

1.8 Chemical Composition

(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

Not Available

Lazurite and Piemontite Chemical Formula

While comparing Lazurite and Piemontite 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 Lazurite and Piemontite chemical formula.

Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

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Lazurite and Piemontite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lazurite and Piemontite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazurite and Piemontite Optical Properties during the identification of gemstone. Specific gravity of Lazurite is Not Available whereas that of Piemontite is Not Available.