Esperite and Cat s Eye Physical Properties

Esperite

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

4.28-4.423.5-3.8

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

Distinct on [010] and [100] poor on [101]

1,1 ; 3,2

1.7 Mohs Hardness

5-5.58.5

2 10

1.8 Chemical Composition

PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)

BeAl ₂ O ₄

Esperite and Cat s Eye Chemical Formula

While comparing Esperite 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 Esperite and Cat s Eye chemical formula.

Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Cat s Eye- BeAl ₂ O ₄

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Esperite Vs Hardystonite

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Esperite Vs Hackmanite

Esperite and Cat s Eye Specific Gravity

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