Hercynite and Marialite Physical Properties

Hercynite

Marialite

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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

4.392.50

1 7.18

1.5 Fracture

ConchoidalGemdat.org, Uneven

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

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

Distinct on {100} and {110}

1.7 Mohs Hardness

7.5-85.5-6

2 10

1.8 Chemical Composition

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

3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)

Hercynite and Marialite Chemical Formula

While comparing Hercynite and Marialite 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 Marialite chemical formula.

Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Marialite- 3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)

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Hercynite and Marialite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hercynite and Marialite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hercynite and Marialite Optical Properties during the identification of gemstone. Specific gravity of Hercynite is 2.50 whereas that of Marialite is 2.50.