A large limonite matrix mostly covered with glistening black micro crystals of plattnerite. Crystals of calcite and mimetite are scattered throughout. Crystallized all around with no real points of attachment. In very good condition and quite nice for the species. Collected in the very early 1970s.The Ojuela Mine, located near Mapimi in Durango, Mexico, was originally opened by Spanish prospectors in 1598 and experienced periods of intense extraction until its final major closure around 1932 due to exhausted reserves and water issues. Geologically, the mine is situated within deformed Cretaceous limestone, where extensive hydrothermal mineralization produced rich oxidized ore bodies containing numerous rare secondary mineral species.The Ojuela Mine, located near Mapimi in Durango, Mexico, was originally opened by Spanish prospectors in 1598 and experienced periods of intense extraction until its final major closure around 1932 due to exhausted reserves and water issues. Geologically, the mine is situated within deformed Cretaceous limestone, where extensive hydrothermal mineralization produced rich oxidized ore bodies containing numerous rare secondary mineral species.
Comments