Anorthite and Lazulite Physical Properties

Anorthite

Lazulite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.773.04-3.17

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

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

1.6 Cleavage

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

{001} Indistinct, {???} Indistinct

1.7 Mohs Hardness

6-6.55.5

2 10

1.8 Chemical Composition

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

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

Anorthite and Lazulite Chemical Formula

While comparing Anorthite 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 Anorthite and Lazulite chemical formula.

Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

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Anorthite and Lazulite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anorthite and Lazulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anorthite and Lazulite Optical Properties during the identification of gemstone. Specific gravity of Anorthite is 3.04-3.17 whereas that of Lazulite is 3.04-3.17.