Cat s Eye and Neptunite Physical Properties

Cat s Eye

Neptunite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.5-3.83.19-3.23

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

1,1 ; 3,2

{110} good

1.7 Mohs Hardness

8.55-6

2 10

1.8 Chemical Composition

BeAl ₂ O ₄

KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)

Cat s Eye and Neptunite Chemical Formula

While comparing Cat s Eye and Neptunite 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 Neptunite chemical formula.

Chemical formula of Cat s Eye- BeAl ₂ O ₄
Chemical formula of Neptunite- KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)

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Cat s Eye and Neptunite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cat s Eye and Neptunite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cat s Eye and Neptunite Optical Properties during the identification of gemstone. Specific gravity of Cat s Eye is 3.19-3.23 whereas that of Neptunite is 3.19-3.23.