Wulfenite and Amethyst Physical Properties

Wulfenite

Amethyst

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

insoluble in common solvents

1.3 Durability

Not Available

1.4 Specific Gravity

6.50-7.002.65

1 7.18

1.5 Fracture

Irregular, Brittle, Conchoidal

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

1.6 Cleavage

On {011}, distinct; on {001}, {013}, indistinct

Indiscernible

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

PbMoO 4Walter Schumann , Gemstones of the world (2001)

SiO₂

Wulfenite and Amethyst Chemical Formula

While comparing Wulfenite 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 Wulfenite and Amethyst chemical formula.

Chemical formula of Wulfenite- PbMoO 4Walter Schumann , Gemstones of the world (2001)
Chemical formula of Amethyst- SiO₂

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Wulfenite and Amethyst Specific Gravity

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