Faustite and Cat s Eye Physical Properties

Faustite

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

2.93.5-3.8

1 7.18

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal

Not Available

1.6 Cleavage

{???} Indistinct

1,1 ; 3,2

1.7 Mohs Hardness

4.58.5

2 10

1.8 Chemical Composition

(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

BeAl ₂ O ₄

Faustite and Cat s Eye Chemical Formula

While comparing Faustite 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 Faustite and Cat s Eye chemical formula.

Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Cat s Eye- BeAl ₂ O ₄

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Faustite and Cat s Eye Specific Gravity

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