Romanchite and Topaz Physical Properties

Romanchite

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

4.70-4.743.49-3.57

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

5-68

2 10

1.8 Chemical Composition

Not Available

Al₂SiO₄(F,OH)₂

Romanchite and Topaz Chemical Formula

While comparing Romanchite 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 Romanchite and Topaz chemical formula.

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

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Romanchite and Topaz Specific Gravity

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