Hercynite and Albite Physical Properties

Hercynite

Albite

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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

4.392.60-2.65

1 7.18

1.5 Fracture

ConchoidalGemdat.org, Uneven

Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal

1.6 Cleavage

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

Perfect on {001}, very good on {010}, imperfect on {110}

1.7 Mohs Hardness

7.5-86-6.5

2 10

1.8 Chemical Composition

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

NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Hercynite and Albite Chemical Formula

While comparing Hercynite and Albite 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 Albite chemical formula.

Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Albite- NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Hercynite and Albite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hercynite and Albite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hercynite and Albite Optical Properties during the identification of gemstone. Specific gravity of Hercynite is 2.60-2.65 whereas that of Albite is 2.60-2.65.