Herderite and Cat s Eye Physical Properties

Herderite

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

2.90-3.023.5-3.8

1 7.18

1.5 Fracture

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

Not Available

1.6 Cleavage

Indistinct on {110}

1,1 ; 3,2

1.7 Mohs Hardness

5-5.58.5

2 10

1.8 Chemical Composition

CaBePO 4(F,OH)Ulrich Henn and Claudio C.

BeAl ₂ O ₄

Herderite and Cat s Eye Chemical Formula

While comparing Herderite 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 Herderite and Cat s Eye chemical formula.

Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.
Chemical formula of Cat s Eye- BeAl ₂ O ₄

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Herderite and Cat s Eye Specific Gravity

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