Magnesite and Calcite Physical Properties

Magnesite

Calcite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Effervesces in hot HCl

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.92-3.122.67-2.73

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

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

1.6 Cleavage

[10 1 1] perfect

Perfect on [10 1 1] three directions with angle of 74° 55

1.7 Mohs Hardness

3.5-4.53

2 10

1.8 Chemical Composition

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

CaCO 3Ulrich Henn and Claudio C.

Magnesite and Calcite Chemical Formula

While comparing Magnesite and Calcite 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 Magnesite and Calcite chemical formula.

Chemical formula of Magnesite- MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.

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Magnesite and Calcite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Magnesite and Calcite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Magnesite and Calcite Optical Properties during the identification of gemstone. Specific gravity of Magnesite is 2.67-2.73 whereas that of Calcite is 2.67-2.73.