Lepidocrocite and Topaz Physical Properties

Lepidocrocite

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

43.49-3.57

1 7.18

1.5 Fracture

Uneven

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

1.6 Cleavage

{010} Perfect

[001] Perfect

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

Not Available

Al₂SiO₄(F,OH)₂

Lepidocrocite and Topaz Chemical Formula

While comparing Lepidocrocite 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 Lepidocrocite and Topaz chemical formula.

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

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Lepidocrocite and Topaz Specific Gravity

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