Londonite and Cat s Eye Physical Properties

Londonite

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

3.343.5-3.8

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

None

1,1 ; 3,2

1.7 Mohs Hardness

Not Available8.5

2 10

1.8 Chemical Composition

(Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)

BeAl ₂ O ₄

Londonite and Cat s Eye Chemical Formula

While comparing Londonite 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 Londonite and Cat s Eye chemical formula.

Chemical formula of Londonite- (Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Cat s Eye- BeAl ₂ O ₄

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Londonite and Cat s Eye Specific Gravity

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