Topaz and Fuchsite Physical Properties

Topaz

Fuchsite

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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

3.49-3.572.77-2.88

1 7.18

1.5 Fracture

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

Uneven

1.6 Cleavage

[001] Perfect

Perfect basal

1.7 Mohs Hardness

82.5

2 10

1.8 Chemical Composition

Al₂SiO₄(F,OH)₂

K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)

Topaz and Fuchsite Chemical Formula

While comparing Topaz and Fuchsite 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 Fuchsite chemical formula.

Chemical formula of Topaz- Al₂SiO₄(F,OH)₂
Chemical formula of Fuchsite- K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)

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Topaz and Fuchsite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Topaz and Fuchsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Fuchsite Optical Properties during the identification of gemstone. Specific gravity of Topaz is 2.77-2.88 whereas that of Fuchsite is 2.77-2.88.