Mottramite and Diaspore Physical Properties

Mottramite

Diaspore

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1 Physical Properties

1.1 Tenacity

Brittle

Very brittle

1.2 Solubility

Soluble

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

5.93.30-3.40

1 7.18

1.5 Fracture

Sub-Conchoidal, Brittle, Metallic

Conchoidal, Brittle, Conchoidal

1.6 Cleavage

None observed

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

1.7 Mohs Hardness

36.5-7

2 10

1.8 Chemical Composition

Not Available

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

Mottramite and Diaspore Chemical Formula

While comparing Mottramite 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 Mottramite 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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Mottramite and Diaspore Specific Gravity

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