Chalcopyrite and Amethyst Physical Properties

Chalcopyrite

Amethyst

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

insoluble in common solvents

1.3 Durability

Not Available

1.4 Specific Gravity

4.1-4.32.65

1 7.18

1.5 Fracture

Uneven, Brittle, Metallic

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

1.6 Cleavage

Indistinct on {011}

Indiscernible

1.7 Mohs Hardness

3.5-47

2 10

1.8 Chemical Composition

CuFeS 2Anthony et al , Handbook of mineralogy (2001)

SiO₂

Chalcopyrite and Amethyst Chemical Formula

While comparing Chalcopyrite 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 Chalcopyrite and Amethyst chemical formula.

Chemical formula of Chalcopyrite- CuFeS 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Amethyst- SiO₂

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Chalcopyrite and Amethyst Specific Gravity

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