Apatite and Rhodochrosite Physical Properties

Apatite

Rhodochrosite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.16-3.233.0-3.3

1 7.18

1.5 Fracture

Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven

Uneven, Conchoidal, Conchoidal to uneven, Brittle

1.6 Cleavage

[0001] indistinct, [1010] indistinct

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

1.7 Mohs Hardness

53.5-4

2 10

1.8 Chemical Composition

Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references

MnCO₃

Apatite and Rhodochrosite Chemical Formula

While comparing Apatite and Rhodochrosite 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 Apatite and Rhodochrosite chemical formula.

Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Rhodochrosite- MnCO₃

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Apatite and Rhodochrosite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apatite and Rhodochrosite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Rhodochrosite Optical Properties during the identification of gemstone. Specific gravity of Apatite is 3.0-3.3 whereas that of Rhodochrosite is 3.0-3.3.