Rhodochrosite and Vivianite Physical Properties

Rhodochrosite

Vivianite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.0-3.3

2.64-2.70

1.5 Fracture

Uneven, Conchoidal, Conchoidal to uneven, Brittle

(e.g. graphite).

1.6 Cleavage

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

{010} Perfect

1.7 Mohs Hardness

3.5-4

Not Available

1.8 Chemical Composition

MnCO₃

Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

Rhodochrosite and Vivianite Chemical Formula

While comparing Rhodochrosite and Vivianite 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 Vivianite chemical formula.

Chemical formula of Rhodochrosite- MnCO₃
Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

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Rhodochrosite and Vivianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rhodochrosite and Vivianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rhodochrosite and Vivianite Optical Properties during the identification of gemstone. Specific gravity of Rhodochrosite is 2.64-2.70 whereas that of Vivianite is 2.64-2.70.