Here is an interesting example of multigenerational deposits of malachite over a chrysocolla core from Mashamba West Mine, DR Congo. The rounded core began as chrysocolla, which was overgrown by fibrous malachite and then primary malachite. The majority of the chrysocolla dissolved away, but a few remnants remain. A neat piece from this copper deposit

Dimensions: 4.4 by 3.2 by 2.8 cm