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Chrome-Chalcedony
Chrome-Chalcedony

Mottramite
Mottramite



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Chrome-Chalcedony
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Mottramite

Chrome-Chalcedony and Mottramite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Soluble

Durability

-
-

Specific Gravity

2.55-2.705.9
1 7.18
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Fracture

-
Sub-Conchoidal

Cleavage

None
None observed

Mohs Hardness

6.5-73
2 10
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Chemical Composition

SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
PbCu(VO4)(OH)

Chrome-Chalcedony and Mottramite Chemical Formula

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

  • Chemical formula of Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
  • Chemical formula of Mottramite- PbCu(VO4)(OH)

Chrome-Chalcedony and Mottramite Specific Gravity

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