Aragonite and Lazurite Physical Properties

Aragonite

Lazurite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Dilute acid

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.93-2.962.75

1 7.18

1.5 Fracture

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

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

1.6 Cleavage

Distinct on {010}, imperfect {110} and {011}

Imperfect on {110}

1.7 Mohs Hardness

3.5-45.5

2 10

1.8 Chemical Composition

CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Aragonite and Lazurite Chemical Formula

While comparing Aragonite 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 Aragonite and Lazurite chemical formula.

Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

Compare Gems for Virgo

Aragonite Vs Peridot

Aragonite Vs Variscite

Aragonite Vs Zircon

Aragonite and Lazurite Specific Gravity

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