Arfvedsonite and Chrome-Chalcedony Physical Properties

Arfvedsonite

Chrome-Chalcedony

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.3-3.52.55-2.70

1 7.18

1.5 Fracture

Uneven, Brittle, Metallic, Brittle, Metallic

Not Available

1.6 Cleavage

Perfect on [110]

Not Available

1.7 Mohs Hardness

5-66.5-7

2 10

1.8 Chemical Composition

NaNa2(Fe++4Fe+++)Si8O22(OH)2

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

Arfvedsonite and Chrome-Chalcedony Chemical Formula

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

Chemical formula of Arfvedsonite- NaNa2(Fe++4Fe+++)Si8O22(OH)2
Chemical formula of Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)

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Arfvedsonite and Chrome-Chalcedony Specific Gravity

Another important criteria for qualitative analysis of gemstones is Arfvedsonite and Chrome-Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Arfvedsonite and Chrome-Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Arfvedsonite is 2.55-2.70 whereas that of Chrome-Chalcedony is 2.55-2.70.