Amethyst and Edenite Physical Properties

Amethyst

Edenite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

insoluble in common solvents

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.653.05-3.37

1 7.18

1.5 Fracture

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

Conchoidal, Brittle, Conchoidal

1.6 Cleavage

Indiscernible

Good on (110)

1.7 Mohs Hardness

75-6

2 10

1.8 Chemical Composition

SiO₂

NaCa2Mg5Si7AlO22(OH)2

Amethyst and Edenite Chemical Formula

While comparing Amethyst and Edenite 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 Edenite chemical formula.

Chemical formula of Amethyst- SiO₂
Chemical formula of Edenite- NaCa2Mg5Si7AlO22(OH)2

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Amethyst and Edenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Amethyst and Edenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amethyst and Edenite Optical Properties during the identification of gemstone. Specific gravity of Amethyst is 3.05-3.37 whereas that of Edenite is 3.05-3.37.