Unakite and Topaz Physical Properties

Unakite

Topaz

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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

2.85-3.203.49-3.57

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

[001] Perfect

1.7 Mohs Hardness

6-78

2 10

1.8 Chemical Composition

Not Available

Al₂SiO₄(F,OH)₂

Unakite and Topaz Chemical Formula

While comparing Unakite and Topaz 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 Unakite and Topaz chemical formula.

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

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Unakite and Topaz Specific Gravity

Another important criteria for qualitative analysis of gemstones is Unakite and Topaz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Unakite and Topaz Optical Properties during the identification of gemstone. Specific gravity of Unakite is 3.49-3.57 whereas that of Topaz is 3.49-3.57.