Zinnwaldite and Chrome-Chalcedony Physical Properties

Zinnwaldite

Chrome-Chalcedony

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1 Physical Properties

1.1 Tenacity

Elastic

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.9-3.12.55-2.70

1 7.18

1.5 Fracture

Uneven

Not Available

1.6 Cleavage

Perfect basal {001}

Not Available

1.7 Mohs Hardness

3.5-4.06.5-7

2 10

1.8 Chemical Composition

Not Available

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

Zinnwaldite and Chrome-Chalcedony Chemical Formula

While comparing Zinnwaldite 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 Zinnwaldite and Chrome-Chalcedony chemical formula.

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

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Zinnwaldite and Chrome-Chalcedony Specific Gravity

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