Calcite and Magnesite Physical Properties

Calcite

Magnesite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Soluble

Effervesces in hot HCl

1.3 Durability

Not Available

1.4 Specific Gravity

2.67-2.732.92-3.12

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

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

[10 1 1] perfect

1.7 Mohs Hardness

33.5-4.5

2 10

1.8 Chemical Composition

CaCO 3Ulrich Henn and Claudio C.

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

Calcite and Magnesite Chemical Formula

While comparing Calcite and Magnesite 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 Calcite and Magnesite chemical formula.

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

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Calcite and Magnesite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Calcite and Magnesite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Calcite and Magnesite Optical Properties during the identification of gemstone. Specific gravity of Calcite is 2.92-3.12 whereas that of Magnesite is 2.92-3.12.