Star Ruby and Calcite Physical Properties

Star Ruby

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

3.95-4.102.67-2.73

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

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

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

Not Available3

2 10

1.8 Chemical Composition

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

CaCO 3Ulrich Henn and Claudio C.

Star Ruby and Calcite Chemical Formula

While comparing Star Ruby 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 Star Ruby and Calcite chemical formula.

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

Compare Blue Gemstones

Star Ruby Vs Tourmaline

Star Ruby Vs Topaz

Star Ruby Vs Tortoiseshell

Star Ruby and Calcite Specific Gravity

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