Povondraite and Sard Physical Properties

Povondraite

Sard

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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

3.262.58-2.63

1 7.18

1.5 Fracture

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

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

None

Not Available

1.7 Mohs Hardness

Not Available6.5-7

2 10

1.8 Chemical Composition

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

SiO 2Ulrich Henn and Claudio C.

Povondraite and Sard Chemical Formula

While comparing Povondraite and Sard 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 Sard 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 Sard- SiO 2Ulrich Henn and Claudio C.

Compare Brown Gemstones

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Povondraite Vs Sonolite

Povondraite and Sard Specific Gravity

Another important criteria for qualitative analysis of gemstones is Povondraite and Sard Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Povondraite and Sard Optical Properties during the identification of gemstone. Specific gravity of Povondraite is 2.58-2.63 whereas that of Sard is 2.58-2.63.