Periclase and Rock Crystal Physical Properties

Periclase

Rock Crystal

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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

3.7-3.92.65

1 7.18

1.5 Fracture

Conchoidal, Brittle

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

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

5.5-67

2 10

1.8 Chemical Composition

MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

SiO 2Walter Schumann , Gemstones of the world (2001)

Periclase and Rock Crystal Chemical Formula

While comparing Periclase and Rock Crystal 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 Rock Crystal chemical formula.

Chemical formula of Periclase- MgOMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Rock Crystal- SiO 2Walter Schumann , Gemstones of the world (2001)

Compare Gems Found In Australia

Periclase Vs Scheelite

Periclase Vs Sapphire

Periclase Vs Rinkite Ce

Periclase and Rock Crystal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Periclase and Rock Crystal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Periclase and Rock Crystal Optical Properties during the identification of gemstone. Specific gravity of Periclase is 2.65 whereas that of Rock Crystal is 2.65.