Anorthoclase and Amethyst Physical Properties

Anorthoclase

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

2.56-2.622.65

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

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

1.6 Cleavage

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

Indiscernible

1.7 Mohs Hardness

6-6.57

2 10

1.8 Chemical Composition

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

SiO₂

Anorthoclase and Amethyst Chemical Formula

While comparing Anorthoclase 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 Anorthoclase and Amethyst chemical formula.

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

Compare Colorless Gems

Anorthoclase Vs Beryllonite

Anorthoclase Vs Beryl

Anorthoclase Vs Black Opal

Anorthoclase and Amethyst Specific Gravity

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