Creedite and Povondraite Physical Properties

Creedite

Povondraite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.703.26

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Perfect on {100}

None

1.7 Mohs Hardness

4.5Not Available

2 10

1.8 Chemical Composition

Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.

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

Creedite and Povondraite Chemical Formula

While comparing Creedite and Povondraite 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 Creedite and Povondraite chemical formula.

Chemical formula of Creedite- Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.
Chemical formula of Povondraite- NaFe3+3Fe3+6(BO 3) 3Si 6O 18(O,OH) 4Anthony et al , Handbook of Mineralogy (2001)

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Creedite and Povondraite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Creedite and Povondraite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Creedite and Povondraite Optical Properties during the identification of gemstone. Specific gravity of Creedite is 3.26 whereas that of Povondraite is 3.26.