Amethyst and Girasol Physical Properties

Amethyst

Girasol

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

insoluble in common solvents

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.651.98-2.50

1 7.18

1.7 Fracture

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

Conchoidal, Conchoidal, Gemstones of the world (2001)

1.8 Cleavage

Indiscernible

Not Available

1.10 Mohs Hardness

75.5-6.5

2 10

1.13 Chemical Composition

SiO₂

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Amethyst and Girasol Chemical Formula

While comparing Amethyst and Girasol 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 Amethyst and Girasol chemical formula.

Chemical formula of Amethyst- SiO₂
Chemical formula of Girasol- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

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Amethyst and Girasol Specific Gravity

Another important criteria for qualitative analysis of gemstones is Amethyst and Girasol Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amethyst and Girasol Optical Properties during the identification of gemstone. Specific gravity of Amethyst is 1.98-2.50 whereas that of Girasol is 1.98-2.50.