Poldervaartite and Diaspore Physical Properties

Poldervaartite

Diaspore

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1 Physical Properties

1.1 Tenacity

Not Available

Very brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.913.30-3.40

1 7.18

1.5 Fracture

Handbook of mineralogy (2001)

Conchoidal, Brittle, Conchoidal

1.6 Cleavage

None

{010} perfect, {110} distinct, {100} in traces

1.7 Mohs Hardness

Not Available6.5-7

2 10

1.8 Chemical Composition

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

AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Poldervaartite and Diaspore Chemical Formula

While comparing Poldervaartite and Diaspore 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 Diaspore chemical formula.

Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

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Poldervaartite and Diaspore Specific Gravity

Another important criteria for qualitative analysis of gemstones is Poldervaartite and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poldervaartite and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Poldervaartite is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.