Atacamite and Catapleiite Physical Properties

Atacamite

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

3.745-3.7762.72

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Brittle

Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

Perfect on {010}, fair on {101}

{110} Perfect, {010} Perfect

1.7 Mohs Hardness

3-3.55-6

2 10

1.8 Chemical Composition

Cu2Cl(OH)3

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

Atacamite and Catapleiite Chemical Formula

While comparing Atacamite 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 Atacamite and Catapleiite chemical formula.

Chemical formula of Atacamite- Cu2Cl(OH)3
Chemical formula of Catapleiite- Na 2ZrSi 3O 9 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Atacamite and Catapleiite Specific Gravity

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