Povondraite and Eosphorite Physical Properties

Povondraite

Eosphorite

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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

3.263.05-3.08

1 7.18

1.5 Fracture

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

Subconchoidal, Uneven, Conchoidal, Uneven

1.6 Cleavage

None

Poor on {100}

1.7 Mohs Hardness

Not Available5

2 10

1.8 Chemical Composition

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

Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Povondraite and Eosphorite Chemical Formula

While comparing Povondraite and Eosphorite 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 Eosphorite 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 Eosphorite- Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Compare Brown Gemstones

Povondraite Vs Sonolite

Povondraite Vs Smoky Quartz

Povondraite Vs Staurolite

Povondraite and Eosphorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Povondraite and Eosphorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Povondraite and Eosphorite Optical Properties during the identification of gemstone. Specific gravity of Povondraite is 3.05-3.08 whereas that of Eosphorite is 3.05-3.08.