Poldervaartite and Thulite Physical Properties

Poldervaartite

Thulite

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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

2.913.1

1 7.18

1.5 Fracture

Handbook of mineralogy (2001)

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

None

Perfect {010} imperfect {100}

1.7 Mohs Hardness

Not Available6-7

2 10

1.8 Chemical Composition

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

Ca₂Al₃(SiO₄)₃(OH)

Poldervaartite and Thulite Chemical Formula

While comparing Poldervaartite and Thulite 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 Thulite chemical formula.

Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Thulite- Ca₂Al₃(SiO₄)₃(OH)

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Poldervaartite and Thulite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Poldervaartite and Thulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poldervaartite and Thulite Optical Properties during the identification of gemstone. Specific gravity of Poldervaartite is 3.1 whereas that of Thulite is 3.1.