Poldervaartite and Hibonite Physical Properties

Poldervaartite

Hibonite

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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

2.913.84

1 7.18

1.5 Fracture

Handbook of mineralogy (2001)

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

1.6 Cleavage

None

{0001} good, {10 1 0} parting

1.7 Mohs Hardness

Not Available7.5-8

2 10

1.8 Chemical Composition

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

(Ca,Ce)(Al,Ti,Mg)12O19

Poldervaartite and Hibonite Chemical Formula

While comparing Poldervaartite and Hibonite 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 Hibonite chemical formula.

Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19

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Poldervaartite and Hibonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Poldervaartite and Hibonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poldervaartite and Hibonite Optical Properties during the identification of gemstone. Specific gravity of Poldervaartite is 3.84 whereas that of Hibonite is 3.84.