Grandidierite and Cat s Eye Physical Properties

Grandidierite

Cat s Eye

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.85-3.003.5-3.8

1 7.18

1.5 Fracture

Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven

Not Available

1.6 Cleavage

Perfect

1,1 ; 3,2

1.7 Mohs Hardness

7.58.5

2 10

1.8 Chemical Composition

(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

BeAl ₂ O ₄

Grandidierite and Cat s Eye Chemical Formula

While comparing Grandidierite 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 Grandidierite and Cat s Eye chemical formula.

Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Chemical formula of Cat s Eye- BeAl ₂ O ₄

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Grandidierite and Cat s Eye Specific Gravity

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