Hercynite and Papagoite Physical Properties

Hercynite

Papagoite

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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

4.393.25

1 7.18

1.5 Fracture

ConchoidalGemdat.org, Uneven

Brittle, Metallic

1.6 Cleavage

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

Imperfect in one direction

1.7 Mohs Hardness

7.5-85-5.5

2 10

1.8 Chemical Composition

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

CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

Hercynite and Papagoite Chemical Formula

While comparing Hercynite and Papagoite 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 Papagoite chemical formula.

Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Papagoite- CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

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Hercynite and Papagoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hercynite and Papagoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hercynite and Papagoite Optical Properties during the identification of gemstone. Specific gravity of Hercynite is 3.25 whereas that of Papagoite is 3.25.