Lazulite and Lazurite Physical Properties

Lazulite

Lazurite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.04-3.172.75

1 7.18

1.5 Fracture

Uneven, Uneven, Gemstones of the world (2001) More from other references

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

1.6 Cleavage

{001} Indistinct, {???} Indistinct

Imperfect on {110}

1.7 Mohs Hardness

5.55.5

2 10

1.8 Chemical Composition

(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

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

Lazulite and Lazurite Chemical Formula

While comparing Lazulite 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 Lazulite and Lazurite chemical formula.

Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

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Lazulite and Lazurite Specific Gravity

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