Chrome-Chalcedony and Gahnite Physical Properties

Chrome-Chalcedony

Gahnite

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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

2.55-2.704.00-4.62

1 7.18

1.5 Fracture

Not Available

Conchoidal, Uneven

1.6 Cleavage

Not Available

Indistinct parting on [111]

1.7 Mohs Hardness

6.5-77.5-8

2 10

1.8 Chemical Composition

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

ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Chrome-Chalcedony and Gahnite Chemical Formula

While comparing Chrome-Chalcedony and Gahnite 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 Gahnite chemical formula.

Chemical formula of Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Chrome-Chalcedony and Gahnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chrome-Chalcedony and Gahnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrome-Chalcedony and Gahnite Optical Properties during the identification of gemstone. Specific gravity of Chrome-Chalcedony is 4.00-4.62 whereas that of Gahnite is 4.00-4.62.