Poldervaartite and Aragonite Physical Properties

Poldervaartite

Aragonite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Dilute acid

1.3 Durability

Not Available

1.4 Specific Gravity

2.912.93-2.96

1 7.18

1.5 Fracture

Handbook of mineralogy (2001)

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

1.6 Cleavage

None

Distinct on {010}, imperfect {110} and {011}

1.7 Mohs Hardness

Not Available3.5-4

2 10

1.8 Chemical Composition

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

CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Poldervaartite and Aragonite Chemical Formula

While comparing Poldervaartite and Aragonite 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 Aragonite chemical formula.

Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Poldervaartite and Aragonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Poldervaartite and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poldervaartite and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Poldervaartite is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.