Bauxite, Boron

We are offering collection of 20 stones, set of 20 stones collections.
rocks minerals collections education teaching aids geological showcases rocks & minerals collections
this collection contains 20 types of basic stones. The stones include some of the following bauxite, boron, calcite, chalcopyrite, dolomite, feldspar, gabbro, granite, graphite, gypsum, hematite, lime stone, magnetite, marble, pegmatite, pumice, quartz, slate, soap stone & sulphur etc.
all the collections will be available in paper mounted glass front, polished showcase glass front, wooden box polished or corrugated compartment boxes display trays types.