Pyrope Spessartine and Amethyst Physical Properties

Pyrope Spessartine

Amethyst

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

insoluble in common solvents

1.3 Durability

Not Available

1.4 Specific Gravity

3.62-4.33

2.65

1.5 Fracture

Uneven, Uneven, ConchoidalGemdat.org, Management Team (2012)

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

Not Available

Indiscernible

1.7 Mohs Hardness

7-7.5

1.8 Chemical Composition

Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

SiO₂

Pyrope Spessartine and Amethyst Chemical Formula

While comparing Pyrope Spessartine 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 Pyrope Spessartine and Amethyst chemical formula.

Chemical formula of Pyrope Spessartine- Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Amethyst- SiO₂

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Pyrope Spessartine and Amethyst Specific Gravity

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