Friedelite and Calcite Physical Properties

Friedelite

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

3.06-3.192.67-2.73

1 7.18

1.5 Fracture

UnevenArthur Thomas, Gemstones (2009) Tough, UnevenArthur Thomas, Gemstones (2009) Tough, Brittle, Uneven

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

1.6 Cleavage

{010} Perfect

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

1.7 Mohs Hardness

4-53

2 10

1.8 Chemical Composition

Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.

CaCO 3Ulrich Henn and Claudio C.

Friedelite and Calcite Chemical Formula

While comparing Friedelite 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 Friedelite and Calcite chemical formula.

Chemical formula of Friedelite- Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.

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Friedelite and Calcite Specific Gravity

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