Amethyst and Anorthoclase Physical Properties

Amethyst

Anorthoclase

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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

2.652.56-2.62

1 7.18

1.5 Fracture

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

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

Indiscernible

From the Greek for oblique and fracture, descriptive of the cleavage

1.7 Mohs Hardness

76-6.5

2 10

1.8 Chemical Composition

SiO₂

(Na,K)AlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Amethyst and Anorthoclase Chemical Formula

While comparing Amethyst and Anorthoclase 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 Anorthoclase chemical formula.

Chemical formula of Amethyst- SiO₂
Chemical formula of Anorthoclase- (Na,K)AlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Amethyst and Anorthoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Amethyst and Anorthoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amethyst and Anorthoclase Optical Properties during the identification of gemstone. Specific gravity of Amethyst is 2.56-2.62 whereas that of Anorthoclase is 2.56-2.62.