Obsidian and Periclase Physical Properties

Obsidian

Periclase

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.35-2.603.7-3.9

1 7.18

1.5 Fracture

Conchoidal, ConchoidalWalter Schumann, Conchoidal

Conchoidal, Brittle

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

5-5.55.5-6

2 10

1.8 Chemical Composition

Not Available

MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

Obsidian and Periclase Chemical Formula

While comparing Obsidian 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 Obsidian and Periclase chemical formula.

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

Compare Gems for Sagittarius

Obsidian Vs Tanzanite

Obsidian Vs Spinel

Obsidian Vs Topaz

Obsidian and Periclase Specific Gravity

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