Polymer Clay: malachite faux

first cut at a malachite from Making Polymer Clay Beads by Carol Blackburn.  Mine looks more like a flower than a random stone.  But it is fairly pretty.  When I cut the rectangles I put saran wrap on top then pushed down making nice curved sides.  I put a layer of black on the back and black strips along the sides.  I am trying to get better at finishing.
I put them in the tumbler with soap water and river rocks (1/2 inch size or less) then polished them with the buffer.

Patty;)