Sunstone and Periclase Physical Properties

Sunstone

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

2.62-2.653.7-3.9

1 7.18

1.5 Fracture

Gemstones of the world (2001)

Conchoidal, Brittle

1.6 Cleavage

001

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

1.7 Mohs Hardness

65.5-6

2 10

1.8 Chemical Composition

Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

Sunstone and Periclase Chemical Formula

While comparing Sunstone 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 Sunstone and Periclase chemical formula.

Chemical formula of Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈
Chemical formula of Periclase- MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

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Sunstone and Periclase Specific Gravity

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