Periclase and Chrome-Chalcedony Physical Properties

Periclase

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

3.7-3.92.55-2.70

1 7.18

1.5 Fracture

Conchoidal, Brittle

Not Available

1.6 Cleavage

{001} perfect; {111} imperfect, may exhibit parting on , {011}

Not Available

1.7 Mohs Hardness

5.5-66.5-7

2 10

1.8 Chemical Composition

MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

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

Periclase and Chrome-Chalcedony Chemical Formula

While comparing Periclase 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 Periclase and Chrome-Chalcedony chemical formula.

Chemical formula of Periclase- MgOMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)

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Periclase and Chrome-Chalcedony Specific Gravity

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