Topaz and Pietersite Physical Properties

Topaz

Pietersite

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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

3.49-3.57Not Available

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

[001] Perfect

Not Available

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

Al₂SiO₄(F,OH)₂

Not Available

Topaz and Pietersite Chemical Formula

While comparing Topaz and Pietersite 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 Pietersite chemical formula.

Chemical formula of Topaz- Al₂SiO₄(F,OH)₂

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Topaz Vs Pietersite

Topaz and Pietersite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Topaz and Pietersite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Pietersite Optical Properties during the identification of gemstone. Specific gravity of Topaz is Not Available whereas that of Pietersite is Not Available.