We do a lot of that at Rings & Things. Remember the resin replica of malachite that I broke and burned? Here is a shot of some of the broken stones we've collected.

The "faux" malachite is in front, in the middle, Surface dyed purple turquoise on the right side. Various pieces of turquoise are in the rear. Some are stabilized, some are surface enhanced possibly with wax.

The big block in the back is compressed "azurite-malachite" made from probably dyed lapis and malachite held together with resin.