Periclase and Chalcedony Physical Properties

Periclase

Chalcedony

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.7-3.92.55-2.70

1 7.18

1.5 Fracture

Conchoidal, Brittle

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

1.6 Cleavage

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

Absent

1.7 Mohs Hardness

5.5-66.5-7

2 10

1.8 Chemical Composition

MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

SiO₂

Periclase and Chalcedony Chemical Formula

While comparing Periclase and 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 Chalcedony chemical formula.

Chemical formula of Periclase- MgOMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Chalcedony- SiO₂

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Periclase and Chalcedony Specific Gravity

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