Wulfenite with Mottramite

specimen number:
2063113

location:
Ojuela Mine, Mapimi, Durango, Mexico

description:
Attractive specimen with caramel colored lustrous blocky crystals of wulfenite to 1.2 cm in size aesthetic up on a greenish botryoidal mottramite crystal matrix. In terrific condition all around. The specimen comes with a previous label from the collection of Ray DeMark. From 2012 four 2013, the specimen came from level 6, San Juan Poniente area within the mine.

The Ojuela Mine, located in Mapimi, Durango, Mexico, was discovered by Spanish prospectors in 1598 and operated intermittently for over 350 years before closing commercially in 1932. Geologically, the deposit is hosted within deformed Cretaceous limestone units that have been intruded by Tertiary igneous rocks, creating an extensive hydrothermal pipe and vein system. Intense secondary oxidation processes acting on primary sulfide mineralization have produced a world-renowned zone of rich secondary mineral assemblages, making the mine famous for its exceptional variety of colorful arsenates, carbonates, and oxides.

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