Zinnwaldite and Aragonite Physical Properties

Zinnwaldite

Aragonite

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1 Physical Properties

1.1 Tenacity

Elastic

Brittle

1.2 Solubility

Not Available

Dilute acid

1.3 Durability

Not Available

1.4 Specific Gravity

2.9-3.12.93-2.96

1 7.18

1.5 Fracture

Uneven

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

1.6 Cleavage

Perfect basal {001}

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

1.7 Mohs Hardness

3.5-4.03.5-4

2 10

1.8 Chemical Composition

Not Available

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

Zinnwaldite and Aragonite Chemical Formula

While comparing Zinnwaldite and Aragonite 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 Zinnwaldite and Aragonite chemical formula.

Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Zinnwaldite and Aragonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Zinnwaldite and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zinnwaldite and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Zinnwaldite is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.