Herderite and Papagoite Physical Properties

Herderite

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

2.90-3.023.25

1 7.18

1.5 Fracture

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

Brittle, Metallic

1.6 Cleavage

Indistinct on {110}

Imperfect in one direction

1.7 Mohs Hardness

5-5.55-5.5

2 10

1.8 Chemical Composition

CaBePO 4(F,OH)Ulrich Henn and Claudio C.

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

Herderite and Papagoite Chemical Formula

While comparing Herderite 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 Herderite and Papagoite chemical formula.

Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.
Chemical formula of Papagoite- CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

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Herderite and Papagoite Specific Gravity

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