cut a test slab, or better yet polish a few corners. Amazonite has
some optical properties, a moonstoone effect, that can add to, or
subtract from, the overall color of the stone.
also, if you have a in the rough, it is best to stress relieve this
by cleaving before cutting your final stone outline. you can use a
screwdriver, a very small chisel with very light taps from the
handle of a hammer, a micromounters pre splitter, or even a Diamond