Manganosite, Pyrochroite, Rhodochrosite
Scanniclift Manganese Mine, Doddiscombsleigh, Teignbridge, Devon, England, UK
Overall specimen dimensions approx, 3 x 2 x 3 inches. The following information supplied by curator (Minerals dept) Natural history Museum, London following analysis.
"The result is that our x-ray analysis shows that that material appears to consist of a mixture of Manganosite (MnO) and Pyrochroite (Mn(OH)2). Neither of these species is ...
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