Star Ruby and Periclase Physical Properties

Star Ruby

Periclase

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.95-4.103.7-3.9

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

Conchoidal, Brittle

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

Not Available5.5-6

2 10

1.8 Chemical Composition

Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)

MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

Star Ruby and Periclase Chemical Formula

While comparing Star Ruby 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 Star Ruby and Periclase chemical formula.

Chemical formula of Star Ruby- Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Periclase- MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

Compare Blue Gemstones

Star Ruby Vs Tourmaline

Star Ruby Vs Tortoiseshell

Star Ruby Vs Topaz

Star Ruby and Periclase Specific Gravity

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