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Grossular
Grossular

Amethyst
Amethyst



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Grossular
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Amethyst

Grossular and Amethyst Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
insoluble in common solvents
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.55-3.732.65
Amber
1 7.18
1.5 Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
1.6 Cleavage
none
Indiscernible
1.7 Mohs Hardness
7-7.57
Amber
2 10
1.8 Chemical Composition
Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
SiO2

Grossular and Amethyst Chemical Formula

While comparing Grossular 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 Grossular and Amethyst chemical formula.

  • Chemical formula of Grossular- Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
  • Chemical formula of Amethyst- SiO2

Grossular and Amethyst Specific Gravity

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