Chrome-Chalcedony and Topaz Physical Properties

Chrome-Chalcedony

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

2.55-2.703.49-3.57

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

6.5-78

2 10

1.8 Chemical Composition

SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)

Al₂SiO₄(F,OH)₂

Chrome-Chalcedony and Topaz Chemical Formula

While comparing Chrome-Chalcedony 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 Chrome-Chalcedony and Topaz chemical formula.

Chemical formula of Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
Chemical formula of Topaz- Al₂SiO₄(F,OH)₂

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Chrome-Chalcedony and Topaz Specific Gravity

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