Childrenite and Aragonite Physical Properties

Childrenite

Aragonite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Soluble

Dilute acid

1.3 Durability

Not Available

1.4 Specific Gravity

3.06-3.252.93-2.96

1 7.18

1.5 Fracture

Sub-Conchoidal, ConchoidalArthur Thomas, Conchoidal, Uneven

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

1.6 Cleavage

Poor/indistinct on {100}

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

1.7 Mohs Hardness

4.5-53.5-4

2 10

1.8 Chemical Composition

(Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)

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

Childrenite and Aragonite Chemical Formula

While comparing Childrenite 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 Childrenite and Aragonite chemical formula.

Chemical formula of Childrenite- (Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)
Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Childrenite and Aragonite Specific Gravity

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