Quartz and Periclase Physical Properties

Quartz

Periclase

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.653.7-3.9

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Brittle, Gems

Conchoidal, Brittle

1.6 Cleavage

{0110} Indistinct

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

1.7 Mohs Hardness

75.5-6

2 10

1.8 Chemical Composition

SiO₂

MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

Quartz and Periclase Chemical Formula

While comparing Quartz and Periclase 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 Periclase chemical formula.

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

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Quartz and Periclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Quartz and Periclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Quartz and Periclase Optical Properties during the identification of gemstone. Specific gravity of Quartz is 3.7-3.9 whereas that of Periclase is 3.7-3.9.