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RM1787   Malachite on limonite

Oumjrane mines, Alnif, Er Rachidia, Meknès-Tafilalet, Morocco

Very rich group of elongated and very well defined prismatic crystals of malachite, it would seem to be primary but in my opinion it is a total pseudomorphic substitution after azurite crystals. The brightness is excellent, intense green color, forming divergent aggregates. They are disposed filling cavities of the goethite matrix (limonite). Excellent specimens rarely seen in collections.

Size: 7.2 x 4.8 x 4.5 cm.
Main crystal: 10 x 2 mm.
Found in 02/2018