Pearl and Chrome-Chalcedony Physical Properties

Pearl

Chrome-Chalcedony

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.60-2.852.55-2.70

1 7.18

1.5 Fracture

Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)

Not Available

1.6 Cleavage

none

Not Available

1.7 Mohs Hardness

2.5-4.56.5-7

2 10

1.8 Chemical Composition

Not Available

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

Pearl and Chrome-Chalcedony Chemical Formula

While comparing Pearl 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 Pearl 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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Pearl and Chrome-Chalcedony Specific Gravity

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