Topaz and Cavansite Physical Properties

Topaz

Cavansite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.49-3.57

2.25-2.33

1.5 Fracture

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

Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

[001] Perfect

Good on {010}

1.7 Mohs Hardness

3-4

1.8 Chemical Composition

Al₂SiO₄(F,OH)₂

Ca(VO)Si4O10•4(H2O)

Topaz and Cavansite Chemical Formula

While comparing Topaz and Cavansite 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 Cavansite chemical formula.

Chemical formula of Topaz- Al₂SiO₄(F,OH)₂
Chemical formula of Cavansite- Ca(VO)Si4O10•4(H2O)

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Topaz and Cavansite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Topaz and Cavansite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Cavansite Optical Properties during the identification of gemstone. Specific gravity of Topaz is 2.25-2.33 whereas that of Cavansite is 2.25-2.33.