Charlesite and Aragonite Physical Properties

Charlesite

Aragonite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Dilute acid

1.3 Durability

Not Available

1.4 Specific Gravity

1.792.93-2.96

1 7.18

1.5 Fracture

Irregular/uneven, Brittle, Metallic

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

1.6 Cleavage

Perfect on {10bar10}

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

1.7 Mohs Hardness

2.53.5-4

2 10

1.8 Chemical Composition

Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)

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

Charlesite and Aragonite Chemical Formula

While comparing Charlesite 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 Charlesite and Aragonite chemical formula.

Chemical formula of Charlesite- Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Charlesite and Aragonite Specific Gravity

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