Shattuckite and Amethyst Physical Properties

Shattuckite

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

3.80-4.152.65

1 7.18

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

perfect along [010] and [100]

Indiscernible

1.7 Mohs Hardness

3.5-47

2 10

1.8 Chemical Composition

Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

SiO₂

Shattuckite and Amethyst Chemical Formula

While comparing Shattuckite 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 Shattuckite and Amethyst chemical formula.

Chemical formula of Shattuckite- Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Amethyst- SiO₂

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Shattuckite and Amethyst Specific Gravity

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