Jacobsite and Calcite Physical Properties

Jacobsite

Calcite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

4.76-5.03

2.67-2.73

1.5 Fracture

Conchoidal, Brittle

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

1.6 Cleavage

None

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

1.7 Mohs Hardness

5.5-6.5

1.8 Chemical Composition

(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

CaCO 3Ulrich Henn and Claudio C.

Jacobsite and Calcite Chemical Formula

While comparing Jacobsite 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 Jacobsite and Calcite chemical formula.

Chemical formula of Jacobsite- (Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.

Compare Brown Gemstones

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Jacobsite and Calcite Specific Gravity

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