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Calcite
Calcite

Amethyst
Amethyst



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Calcite
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Amethyst

Calcite and Amethyst Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Soluble
insoluble in common solvents
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.67-2.732.65
Amber
1 7.18
1.5 Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
1.6 Cleavage
Perfect on [10 1 1] three directions with angle of 74° 55
Indiscernible
1.7 Mohs Hardness
37
Amber
2 10
1.8 Chemical Composition
CaCO 3Ulrich Henn and Claudio C.
SiO2

Calcite and Amethyst Chemical Formula

While comparing Calcite and Amethyst 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 Amethyst chemical formula.

  • Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.
  • Chemical formula of Amethyst- SiO2

Calcite and Amethyst Specific Gravity

Another important criteria for qualitative analysis of gemstones is Calcite and Amethyst Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Calcite and Amethyst Optical Properties during the identification of gemstone. Specific gravity of Calcite is 2.65 whereas that of Amethyst is 2.65.