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Diaspore
Diaspore

Mottramite
Mottramite



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Diaspore
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Mottramite

Diaspore and Mottramite Physical Properties

Physical Properties

Tenacity

Very brittle
Brittle

Solubility

insoluble
Soluble

Durability

-
-

Specific Gravity

3.30-3.405.9
1 7.18
👆🏻

Fracture

Conchoidal
Sub-Conchoidal

Cleavage

{010} perfect, {110} distinct, {100} in traces
None observed

Mohs Hardness

6.5-73
2 10
👆🏻

Chemical Composition

AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
PbCu(VO4)(OH)

Diaspore and Mottramite Chemical Formula

While comparing Diaspore and Mottramite 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 Diaspore and Mottramite chemical formula.

  • Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
  • Chemical formula of Mottramite- PbCu(VO4)(OH)

Diaspore and Mottramite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Diaspore and Mottramite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Diaspore and Mottramite Optical Properties during the identification of gemstone. Specific gravity of Diaspore is 5.9 whereas that of Mottramite is 5.9.