Poldervaartite and Celestine Physical Properties

Poldervaartite

Celestine

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.913.90-4.00

1 7.18

1.5 Fracture

Handbook of mineralogy (2001)

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal

1.6 Cleavage

None

Perfect on {001}, good on {210}, poor on {010}

1.7 Mohs Hardness

Not Available3-3.5

2 10

1.8 Chemical Composition

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

SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Poldervaartite and Celestine Chemical Formula

While comparing Poldervaartite and Celestine 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 Celestine chemical formula.

Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Celestine- SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Poldervaartite and Celestine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Poldervaartite and Celestine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poldervaartite and Celestine Optical Properties during the identification of gemstone. Specific gravity of Poldervaartite is 3.90-4.00 whereas that of Celestine is 3.90-4.00.