Grandidierite and Papagoite Physical Properties

Grandidierite

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

2.85-3.003.25

1 7.18

1.5 Fracture

Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven

Brittle, Metallic

1.6 Cleavage

Perfect

Imperfect in one direction

1.7 Mohs Hardness

7.55-5.5

2 10

1.8 Chemical Composition

(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

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

Grandidierite and Papagoite Chemical Formula

While comparing Grandidierite 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 Grandidierite and Papagoite chemical formula.

Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Chemical formula of Papagoite- CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Green Gemstones

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Grandidierite Vs Hurlbutite

Grandidierite and Papagoite Specific Gravity

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