Poldervaartite and Hurlbutite Physical Properties

Poldervaartite

Hurlbutite

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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

2.912.90

1 7.18

1.5 Fracture

Handbook of mineralogy (2001)

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

1.6 Cleavage

None

1.7 Mohs Hardness

Not Available6

2 10

1.8 Chemical Composition

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

CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Poldervaartite and Hurlbutite Chemical Formula

While comparing Poldervaartite and Hurlbutite 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 Hurlbutite chemical formula.

Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Hurlbutite- CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Poldervaartite and Hurlbutite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Poldervaartite and Hurlbutite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poldervaartite and Hurlbutite Optical Properties during the identification of gemstone. Specific gravity of Poldervaartite is 2.90 whereas that of Hurlbutite is 2.90.