A stunning specimen of Michigan copper and silver together in one specimen, that we will not call a "half-breed" here because the copper and silver are not densely intermixed, but simply intergrown and still distinctive rather than an amalgam/mix. And, this is so much more AESTHETIC than the usual half-breed, for many reasons. First, the copper has this gorgeous jagged form, and on top of that, is IRIDESCENT! It contrasts beautifully with the shiny silver, which has actually formed crude crystals instead of the usual "lump" upon massive copper most half-breeds come as.