Chrome-Chalcedony and Sellaite Physical Properties

Chrome-Chalcedony

Sellaite

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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

2.55-2.703.14-3.16

1 7.18

1.5 Fracture

Not Available

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle

1.6 Cleavage

Not Available

Perfect on {010} and {110}

1.7 Mohs Hardness

6.5-75-5.5

2 10

1.8 Chemical Composition

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

MgF 2Ulrich Henn and Claudio C.

Chrome-Chalcedony and Sellaite Chemical Formula

While comparing Chrome-Chalcedony and Sellaite 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 Sellaite chemical formula.

Chemical formula of Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
Chemical formula of Sellaite- MgF 2Ulrich Henn and Claudio C.

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Chrome-Chalcedony and Sellaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chrome-Chalcedony and Sellaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrome-Chalcedony and Sellaite Optical Properties during the identification of gemstone. Specific gravity of Chrome-Chalcedony is 3.14-3.16 whereas that of Sellaite is 3.14-3.16.