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RM1822   Pyrolusite and Romanéchite

Good specimen formed by various manganese oxides, with tabular crystals of pyrolusite forming brilliant rosettes, on botryoidal aggregates of romanèchite-pyrolusite. A good old piece. Acquired by Sr. Manchion in the former minerals fair held in 1985 in L'Hospitalet de Llobregat, close to Barcelona.

Size: 7.8 x 6.2 x 3.5 cm.
Main crystal: 5 x 4 mm. aggr.
Found in ±1985.
Col. J.M. Manchion (Barcelona). No.137, 1985.
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