Povondraite and Mellite Physical Properties

Povondraite

Mellite

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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

3.261.58-1.60

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

None

{011} Imperfect

1.7 Mohs Hardness

Not Available2

2 10

1.8 Chemical Composition

NaFe3+3Fe3+6(BO 3) 3Si 6O 18(O,OH) 4Anthony et al , Handbook of Mineralogy (2001)

Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

Povondraite and Mellite Chemical Formula

While comparing Povondraite and Mellite 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 Povondraite and Mellite chemical formula.

Chemical formula of Povondraite- NaFe3+3Fe3+6(BO 3) 3Si 6O 18(O,OH) 4Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Mellite- Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

Compare Brown Gemstones

Povondraite Vs Sonolite

Povondraite Vs Staurolite

Povondraite Vs Smoky Quartz

Povondraite and Mellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Povondraite and Mellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Povondraite and Mellite Optical Properties during the identification of gemstone. Specific gravity of Povondraite is 1.58-1.60 whereas that of Mellite is 1.58-1.60.