Pearl and Periclase Physical Properties

Pearl

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

2.60-2.853.7-3.9

1 7.18

1.5 Fracture

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

Conchoidal, Brittle

1.6 Cleavage

none

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

1.7 Mohs Hardness

2.5-4.55.5-6

2 10

1.8 Chemical Composition

Not Available

MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

Pearl and Periclase Chemical Formula

While comparing Pearl 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 Pearl and Periclase chemical formula.

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

Compare Blue Gemstones

Pearl Vs Precious Opal

Pearl Vs Prase Opal

Pearl Vs Prase

Pearl and Periclase Specific Gravity

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