Topaz and Papagoite Physical Properties

Topaz

Papagoite

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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

3.49-3.573.25

1 7.18

1.5 Fracture

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

Brittle, Metallic

1.6 Cleavage

[001] Perfect

Imperfect in one direction

1.7 Mohs Hardness

85-5.5

2 10

1.8 Chemical Composition

Al₂SiO₄(F,OH)₂

CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

Topaz and Papagoite Chemical Formula

While comparing Topaz and Papagoite 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 Topaz and Papagoite chemical formula.

Chemical formula of Topaz- Al₂SiO₄(F,OH)₂
Chemical formula of Papagoite- CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

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Topaz and Papagoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Topaz and Papagoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Papagoite Optical Properties during the identification of gemstone. Specific gravity of Topaz is 3.25 whereas that of Papagoite is 3.25.