Quartz and Chrome-Chalcedony Physical Properties

Quartz

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

2.652.55-2.70

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Brittle, Gems

Not Available

1.6 Cleavage

{0110} Indistinct

Not Available

1.7 Mohs Hardness

76.5-7

2 10

1.8 Chemical Composition

SiO₂

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

Quartz and Chrome-Chalcedony Chemical Formula

While comparing Quartz 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 Quartz and Chrome-Chalcedony chemical formula.

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

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Quartz and Chrome-Chalcedony Specific Gravity

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