Cacoxenite and Amethyst Physical Properties

Cacoxenite

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

2.2-2.6

2.65

1.5 Fracture

Uneven

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

1.6 Cleavage

None

Indiscernible

1.7 Mohs Hardness

3-4

1.8 Chemical Composition

(Fe+++,Al)25(PO4)17O6(OH)12•75(H2O)

SiO₂

Cacoxenite and Amethyst Chemical Formula

While comparing Cacoxenite 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 Cacoxenite and Amethyst chemical formula.

Chemical formula of Cacoxenite- (Fe+++,Al)25(PO4)17O6(OH)12•75(H2O)
Chemical formula of Amethyst- SiO₂

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Cacoxenite and Amethyst Specific Gravity

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