Andradite and Cat s Eye Physical Properties

Andradite

Cat s Eye

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.70-4.103.5-3.8

1 7.18

1.5 Fracture

Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)

Not Available

1.6 Cleavage

none

1,1 ; 3,2

1.7 Mohs Hardness

6.5-78.5

2 10

1.8 Chemical Composition

Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

BeAl ₂ O ₄

Andradite and Cat s Eye Chemical Formula

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

Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Cat s Eye- BeAl ₂ O ₄

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Andradite and Cat s Eye Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andradite and Cat s Eye Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andradite and Cat s Eye Optical Properties during the identification of gemstone. Specific gravity of Andradite is 3.5-3.8 whereas that of Cat s Eye is 3.5-3.8.