Calcite and Diaspore Physical Properties

Calcite

Diaspore

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1 Physical Properties

1.1 Tenacity

Brittle

Very brittle

1.2 Solubility

Soluble

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.67-2.733.30-3.40

1 7.18

1.5 Fracture

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

Conchoidal, Brittle, Conchoidal

1.6 Cleavage

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

{010} perfect, {110} distinct, {100} in traces

1.7 Mohs Hardness

36.5-7

2 10

1.8 Chemical Composition

CaCO 3Ulrich Henn and Claudio C.

AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Calcite and Diaspore Chemical Formula

While comparing Calcite and Diaspore 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 Diaspore chemical formula.

Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.
Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

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Calcite and Diaspore Specific Gravity

Another important criteria for qualitative analysis of gemstones is Calcite and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Calcite and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Calcite is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.