Lazulite and Powellite Physical Properties

Lazulite

Powellite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.04-3.174.23

1 7.18

1.5 Fracture

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

UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

{001} Indistinct, {???} Indistinct

{111} Distinct

1.7 Mohs Hardness

5.53.5-4

2 10

1.8 Chemical Composition

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

CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Lazulite and Powellite Chemical Formula

While comparing Lazulite and Powellite 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 Powellite 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 Powellite- CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Lazulite and Powellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lazulite and Powellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazulite and Powellite Optical Properties during the identification of gemstone. Specific gravity of Lazulite is 4.23 whereas that of Powellite is 4.23.