Wall Rock

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	EDS spectrum of bown corrosion residue from Jewel Cave. Note presence of strong iron peak and some manganese and clay elements. Samples are Au-Pd coated. Analysis by Spilde and Northup.
	EDS spectrum of bown corrosion residue from Jewel Cave. Note presence of very strong iron and manganese peaks and some clay elements. Samples are Au-Pd coated. Analysis by Spilde and Northup.
	EDS spectrum of bown corrosion residue from Jewel Cave. Note presence of very strong manganese peak and presence of barium. Psilomelane? Samples are Au-Pd coated. Analysis by Spilde and Northup.
	EDS spectrum of bown corrosion residue from Jewel Cave. Note presence of very strong iron peak. Samples are Au-Pd coated. Analysis by Spilde and Northup.

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