Amethyst and Villiaumite Physical Properties

Amethyst

Villiaumite

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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

2.652.79

1 7.18

1.5 Fracture

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

Brittle, Metallic

1.6 Cleavage

Indiscernible

{100} Perfect, {010} Perfect, {001} Perfect

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

SiO₂

NaFUlrich Henn and Claudio C.

Amethyst and Villiaumite Chemical Formula

While comparing Amethyst and Villiaumite 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 Villiaumite chemical formula.

Chemical formula of Amethyst- SiO₂
Chemical formula of Villiaumite- NaFUlrich Henn and Claudio C.

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Amethyst and Villiaumite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Amethyst and Villiaumite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amethyst and Villiaumite Optical Properties during the identification of gemstone. Specific gravity of Amethyst is 2.79 whereas that of Villiaumite is 2.79.