Cat s Eye and Achroite Physical Properties

Cat s Eye

Achroite

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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

3.5-3.82.90-3.40

1 7.18

1.5 Fracture

Not Available

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

1,1 ; 3,2

Not Available

1.7 Mohs Hardness

8.57-7.5

2 10

1.8 Chemical Composition

BeAl ₂ O ₄

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

Cat s Eye and Achroite Chemical Formula

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

Chemical formula of Cat s Eye- BeAl ₂ O ₄
Chemical formula of Achroite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

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Cat s Eye and Achroite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cat s Eye and Achroite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cat s Eye and Achroite Optical Properties during the identification of gemstone. Specific gravity of Cat s Eye is 2.90-3.40 whereas that of Achroite is 2.90-3.40.