Kyanite and Catapleiite Physical Properties

Kyanite

Catapleiite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.53-3.652.72

1 7.18

1.5 Fracture

Splintery, Brittle, Metallic

Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

[100] perfect [010] imperfect with 79° angle between

{110} Perfect, {010} Perfect

1.7 Mohs Hardness

4-75-6

2 10

1.8 Chemical Composition

Not Available

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

Kyanite and Catapleiite Chemical Formula

While comparing Kyanite and Catapleiite 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 Kyanite and Catapleiite chemical formula.

Chemical formula of Catapleiite- Na 2ZrSi 3O 9 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Compare Blue Gemstones

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Kyanite Vs Swiss blue topaz

Kyanite and Catapleiite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kyanite and Catapleiite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite and Catapleiite Optical Properties during the identification of gemstone. Specific gravity of Kyanite is 2.72 whereas that of Catapleiite is 2.72.