Amethyst and Augite Physical Properties

Amethyst

Augite

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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

2.653.19-3.56

1 7.18

1.5 Fracture

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

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

Indiscernible

{110} Perfect, {010} Indistinct

1.7 Mohs Hardness

75.5-6

2 10

1.8 Chemical Composition

SiO₂

(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)

Amethyst and Augite Chemical Formula

While comparing Amethyst and Augite 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 Augite chemical formula.

Chemical formula of Amethyst- SiO₂
Chemical formula of Augite- (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)

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Amethyst and Augite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Amethyst and Augite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amethyst and Augite Optical Properties during the identification of gemstone. Specific gravity of Amethyst is 3.19-3.56 whereas that of Augite is 3.19-3.56.