set of various gray unpolished rocks with names (antimonite, chromite, graphite, melilitolite, bornite, galenite, sphalerite, magnetite, hematite, cuprite, migmatite, argillite, etc) isolated on white Poster #354368342
set of various gray unpolished rocks with names (antimonite, chromite, graphite, melilitolite, bornite, galenite, sphalerite, magnetite, hematite, cuprite, migmatite, argillite, etc) isolated on white Poster #354368342
