Rhodochrosite and Childrenite Physical Properties

Rhodochrosite

Childrenite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.0-3.3

3.06-3.25

1.5 Fracture

Uneven, Conchoidal, Conchoidal to uneven, Brittle

Sub-Conchoidal, ConchoidalArthur Thomas, Conchoidal, Uneven

1.6 Cleavage

On {10 1 1} perfect; parting on {10 1 2}

Poor/indistinct on {100}

1.7 Mohs Hardness

3.5-4

4.5-5

1.8 Chemical Composition

MnCO₃

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

Rhodochrosite and Childrenite Chemical Formula

While comparing Rhodochrosite and Childrenite 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 Rhodochrosite and Childrenite chemical formula.

Chemical formula of Rhodochrosite- MnCO₃
Chemical formula of Childrenite- (Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)

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Rhodochrosite and Childrenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rhodochrosite and Childrenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rhodochrosite and Childrenite Optical Properties during the identification of gemstone. Specific gravity of Rhodochrosite is 3.06-3.25 whereas that of Childrenite is 3.06-3.25.