Catapleiite and Andalusite Physical Properties

Catapleiite

Andalusite

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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

2.723.05-3.21

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic

Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

{110} Perfect, {010} Perfect

Good on {110}, poor on {100}

1.7 Mohs Hardness

5-67.5

2 10

1.8 Chemical Composition

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

Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Catapleiite and Andalusite Chemical Formula

While comparing Catapleiite and Andalusite 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 Andalusite chemical formula.

Chemical formula of Catapleiite- Na 2ZrSi 3O 9 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Catapleiite and Andalusite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Catapleiite and Andalusite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Catapleiite and Andalusite Optical Properties during the identification of gemstone. Specific gravity of Catapleiite is 3.05-3.21 whereas that of Andalusite is 3.05-3.21.