Aragonite and Hardystonite Physical Properties

Aragonite

Hardystonite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Dilute acid

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.93-2.963.396-3.443

1 7.18

1.5 Fracture

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

Brittle, Metallic

1.6 Cleavage

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

[001] good, [100] and [110] fair

1.7 Mohs Hardness

3.5-43-4

2 10

1.8 Chemical Composition

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

Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)

Aragonite and Hardystonite Chemical Formula

While comparing Aragonite and Hardystonite 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 Hardystonite chemical formula.

Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Hardystonite- Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)

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Aragonite and Hardystonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Aragonite and Hardystonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Aragonite and Hardystonite Optical Properties during the identification of gemstone. Specific gravity of Aragonite is 3.396-3.443 whereas that of Hardystonite is 3.396-3.443.