Rhodochrosite and Anhydrite Physical Properties

Rhodochrosite

Anhydrite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.0-3.32.90-2.98

1 7.18

1.5 Fracture

Uneven, Conchoidal, Conchoidal to uneven, Brittle

Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal

1.6 Cleavage

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

Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.

1.7 Mohs Hardness

3.5-43.5

2 10

1.8 Chemical Composition

MnCO₃

CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Rhodochrosite and Anhydrite Chemical Formula

While comparing Rhodochrosite and Anhydrite 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 Anhydrite chemical formula.

Chemical formula of Rhodochrosite- MnCO₃
Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Rhodochrosite and Anhydrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rhodochrosite and Anhydrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rhodochrosite and Anhydrite Optical Properties during the identification of gemstone. Specific gravity of Rhodochrosite is 2.90-2.98 whereas that of Anhydrite is 2.90-2.98.