Chrome-Chalcedony and Shigaite Physical Properties

Chrome-Chalcedony

Shigaite

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1 Physical Properties

1.1 Tenacity

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Moderately ﬂexible

1.2 Solubility

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1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.702.32

1 7.18

1.5 Fracture

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Flexible Flexible fragments.

1.6 Cleavage

Not Available

Perfect on {0001}

1.7 Mohs Hardness

6.5-72

2 10

1.8 Chemical Composition

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

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Chrome-Chalcedony and Shigaite Chemical Formula

While comparing Chrome-Chalcedony and Shigaite 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 Shigaite chemical formula.

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

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Chrome-Chalcedony and Shigaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chrome-Chalcedony and Shigaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrome-Chalcedony and Shigaite Optical Properties during the identification of gemstone. Specific gravity of Chrome-Chalcedony is 2.32 whereas that of Shigaite is 2.32.