Poldervaartite and Nosean Physical Properties

Poldervaartite

Nosean

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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

2.912.30-2.40

1 7.18

1.5 Fracture

Handbook of mineralogy (2001)

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

1.6 Cleavage

None

{110} Perfect

1.7 Mohs Hardness

Not AvailableNot Available

2 10

1.8 Chemical Composition

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

Na 8Al 6Si 6O 24(SO 4) · H 2OAnthony et al , Handbook of Mineralogy (2001)

Poldervaartite and Nosean Chemical Formula

While comparing Poldervaartite and Nosean 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 Nosean chemical formula.

Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Nosean- Na 8Al 6Si 6O 24(SO 4) · H 2OAnthony et al , Handbook of Mineralogy (2001)

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Poldervaartite and Nosean Specific Gravity

Another important criteria for qualitative analysis of gemstones is Poldervaartite and Nosean Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poldervaartite and Nosean Optical Properties during the identification of gemstone. Specific gravity of Poldervaartite is 2.30-2.40 whereas that of Nosean is 2.30-2.40.