Cat s Eye and Amethyst Physical Properties

Cat s Eye

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

3.5-3.82.65

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

1,1 ; 3,2

Indiscernible

1.7 Mohs Hardness

8.57

2 10

1.8 Chemical Composition

BeAl ₂ O ₄

SiO₂

Cat s Eye and Amethyst Chemical Formula

While comparing Cat s Eye 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 Cat s Eye and Amethyst chemical formula.

Chemical formula of Cat s Eye- BeAl ₂ O ₄
Chemical formula of Amethyst- SiO₂

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Cat s Eye and Amethyst Specific Gravity

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