Calcite and Star Ruby Physical Properties

Calcite

Star Ruby

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.67-2.733.95-4.10

1 7.18

1.5 Fracture

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

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

3Not Available

2 10

1.8 Chemical Composition

CaCO 3Ulrich Henn and Claudio C.

Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)

Calcite and Star Ruby Chemical Formula

While comparing Calcite and Star Ruby 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 Star Ruby chemical formula.

Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.
Chemical formula of Star Ruby- Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)

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Calcite and Star Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Calcite and Star Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Calcite and Star Ruby Optical Properties during the identification of gemstone. Specific gravity of Calcite is 3.95-4.10 whereas that of Star Ruby is 3.95-4.10.