Obsidian and Hercynite Physical Properties

Obsidian

Hercynite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.35-2.604.39

1 7.18

1.5 Fracture

Conchoidal, ConchoidalWalter Schumann, Conchoidal

ConchoidalGemdat.org, Uneven

1.6 Cleavage

Not Available

{111} Indistinct, {111} Indistinct, {111} Indistinct

1.7 Mohs Hardness

5-5.57.5-8

2 10

1.8 Chemical Composition

Not Available

Fe2+ Al 2O 4Gemdat.org , Management Team (2012)

Obsidian and Hercynite Chemical Formula

While comparing Obsidian and Hercynite 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 Hercynite chemical formula.

Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)

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Obsidian and Hercynite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Obsidian and Hercynite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Obsidian and Hercynite Optical Properties during the identification of gemstone. Specific gravity of Obsidian is 4.39 whereas that of Hercynite is 4.39.