Diaspore and Chrome-Chalcedony Physical Properties

Diaspore

Chrome-Chalcedony

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1 Physical Properties

1.1 Tenacity

Very brittle

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.30-3.402.55-2.70

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal

Not Available

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

6.5-76.5-7

2 10

1.8 Chemical Composition

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

SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)

Diaspore and Chrome-Chalcedony Chemical Formula

While comparing Diaspore and Chrome-Chalcedony 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 Chrome-Chalcedony chemical formula.

Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)

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Diaspore and Chrome-Chalcedony Specific Gravity

Another important criteria for qualitative analysis of gemstones is Diaspore and Chrome-Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Diaspore and Chrome-Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Diaspore is 2.55-2.70 whereas that of Chrome-Chalcedony is 2.55-2.70.