Poldervaartite and Williamsite Physical Properties

Poldervaartite

Williamsite

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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

2.912.51-2.63

1 7.18

1.5 Fracture

Handbook of mineralogy (2001)

Conchoidal, Conchoidal, Handbook of mineralogy (2001)

1.6 Cleavage

None

Not Available

1.7 Mohs Hardness

Not Available4

2 10

1.8 Chemical Composition

(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)

(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

Poldervaartite and Williamsite Chemical Formula

While comparing Poldervaartite and Williamsite 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 Poldervaartite and Williamsite chemical formula.

Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Williamsite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

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Poldervaartite and Williamsite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Poldervaartite and Williamsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poldervaartite and Williamsite Optical Properties during the identification of gemstone. Specific gravity of Poldervaartite is 2.51-2.63 whereas that of Williamsite is 2.51-2.63.