Hercynite and Peridot Physical Properties

Hercynite

Peridot

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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

4.391.54-1.55

1 7.18

1.5 Fracture

ConchoidalGemdat.org, Uneven

Conchoidal

1.6 Cleavage

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

Poor

1.7 Mohs Hardness

7.5-86.5-7

2 10

1.8 Chemical Composition

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

(Mg,Fe)₂SiO₄

Hercynite and Peridot Chemical Formula

While comparing Hercynite and Peridot 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 Hercynite and Peridot chemical formula.

Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Peridot- (Mg,Fe)₂SiO₄

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Hercynite and Peridot Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hercynite and Peridot Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hercynite and Peridot Optical Properties during the identification of gemstone. Specific gravity of Hercynite is 1.54-1.55 whereas that of Peridot is 1.54-1.55.