Connellite
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Description
A rare light blue copper corrosion product that forms delicate acicular crystals. Connellite was found as a mineral in Cornwal in 1802 by Philip Rashleigh and was examined chemically by Arthur Connell in 1847. It has also been found on prehistoric bronzes.
Physical and Chemical Properties
| Composition | Cu19Cl4(SO4)(OH)32·3H2O |
|---|
Resources and Citations
- H. Otto 'Das Vorkommen von Conellit in Patinaschichten", Die Naturwissenschaften 50(1):16-17, 1963.
- Walter A. Franke, Magda Mircea, "Plutarch's Report on the Blue Patina of Bronze Statues at Delphi: A Scientific Explanation" JAIC 44(2):103, 2005.
- Wikipedia: http://en.wikipedia.org/wiki/Connellite (access Nov. 30, 2005)