Nuummite and Hercynite Physical Properties

Nuummite

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

3.18-3.374.39

1 7.18

1.5 Fracture

Conchoidal

ConchoidalGemdat.org, Uneven

1.6 Cleavage

Perfect on 210

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

1.7 Mohs Hardness

5.5-67.5-8

2 10

1.8 Chemical Composition

Not Available

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

Nuummite and Hercynite Chemical Formula

While comparing Nuummite 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 Nuummite and Hercynite chemical formula.

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

Compare Green Gemstones

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Nuummite Vs Pezzottaite

Nuummite and Hercynite Specific Gravity

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