Lazulite and Anorthite Physical Properties

Lazulite

Anorthite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.04-3.172.77

1 7.18

1.5 Fracture

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

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

{001} Indistinct, {???} Indistinct

Perfect [001] good [010] poor [110]

1.7 Mohs Hardness

5.56-6.5

2 10

1.8 Chemical Composition

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

CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Lazulite and Anorthite Chemical Formula

While comparing Lazulite and Anorthite 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 Anorthite 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 Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Lazulite and Anorthite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lazulite and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazulite and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Lazulite is 2.77 whereas that of Anorthite is 2.77.