Chalcedony and Chrome-Chalcedony Physical Properties

Chalcedony

Chrome-Chalcedony

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.702.55-2.70

1 7.18

1.5 Fracture

Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann

Not Available

1.6 Cleavage

Absent

Not Available

1.7 Mohs Hardness

6.5-76.5-7

2 10

1.8 Chemical Composition

SiO₂

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

Chalcedony and Chrome-Chalcedony Chemical Formula

While comparing Chalcedony 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 Chalcedony and Chrome-Chalcedony chemical formula.

Chemical formula of Chalcedony- SiO₂
Chemical formula of Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)

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Chalcedony and Chrome-Chalcedony Specific Gravity

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