D. Kim Cathcart Collection The best legrandite crystal by far are from the Ojuela mine at Mapimi in Durango, Mexico, but some very fine examples have also been found at Tsumeb. This specimen with vivid yellow crystals of legrandite is noted on the Cathcart collection card as being from the second known occurrence in the mine. The accompanying Bill Pinch label mentions reinerite crystals, but I have not been able to identify them.