W. Krause, H.-J. Bernhardt, H. Effenberger, M. Martin (2001) Cobalttsumcorite and nickellotharmeyerite, two new minerals from Schneeberg, Germany: description and crystal structure. Neues Jahrb. Mineral. Mon., 558–576.

The mineral occurs as brown to yellow rosette-like aggregates, up to 2 mm across, in which individual crystals are tabular on {2̅ 01}, elongate [010], and up to 0.3 mm long. Electron microprobe analysis gave NiO 5.20 (4.28–5.89), CoO 9.10 (8.27–9.72), ZnO 0.52 (0.25–0.65), PbO 34.23 (33.07–34.95), Al2O3 0.29 (0.09–1.36), Fe2O3 8.47 (7.38–9.98), P2O5 0.06 (0.03–0.12), As2O5 36.49 (35.81–37.24), SO3...

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