Riebeckite and Diaspore Physical Properties

Riebeckite

Diaspore

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1 Physical Properties

1.1 Tenacity

Brittle

Very brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.28-3.443.30-3.40

1 7.18

1.5 Fracture

Uneven, Splintery, Brittle

Conchoidal, Brittle, Conchoidal

1.6 Cleavage

Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}

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

1.7 Mohs Hardness

5.0-6.06.5-7

2 10

1.8 Chemical Composition

Not Available

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

Riebeckite and Diaspore Chemical Formula

While comparing Riebeckite 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 Riebeckite and Diaspore chemical formula.

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

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Riebeckite and Diaspore Specific Gravity

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