Natural malachite and chrysocolla mineral specimens collected from Congo, Africa. With the deep, bright blue colour of the chrysocolla and the vibrant green of the malachite these specimens make for an attractive collectible item. Chrysocolla is a minor copper ore and malachite is produced from the weathering of copper ores hence their association with each other. These specimens are supplied in a large ( 4 cm x 4 cm ) magnification box to enhance the viewing of the mineral. An interesting addition to any collection both for educational and display purposes, excellent for children ( +7 ) or as gift for mineral enthusiasts and those interested in geology.