Catapleiite and Biotite Physical Properties

Catapleiite

Biotite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.722.7-3.3

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic

Uneven, Even, Yellow, White

1.6 Cleavage

{110} Perfect, {010} Perfect

Perfect on the {001}

1.7 Mohs Hardness

5-62.5-3.0

2 10

1.8 Chemical Composition

Na 2ZrSi 3O 9 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

K(Mg,Fe++)3[AlSi3O10(OH,F)2

Catapleiite and Biotite Chemical Formula

While comparing Catapleiite and Biotite 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 Catapleiite and Biotite chemical formula.

Chemical formula of Catapleiite- Na 2ZrSi 3O 9 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2

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Catapleiite and Biotite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Catapleiite and Biotite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Catapleiite and Biotite Optical Properties during the identification of gemstone. Specific gravity of Catapleiite is 2.7-3.3 whereas that of Biotite is 2.7-3.3.