I picked up several of these bizarre specimens on one of my trips to Pakistan. The garnet appears to be growing epitaxially on the apatite (or vice versa!). Both are heavily etched. I would just think of this as an oddball specimen except for the fact that several of them came out at the same time. The bottom of the apatite is a flat termination, a little etched. The piece measures 3 x 2 x 1.6 cm.