This pack of 20 rock and mineral samples is a superb collection designed to educate pupils, helping them understand the difference between a rock and mineral. They can be used for the teaching of geography and chemistry in middle schools, and consist of the following 20 pieces: granite, basalt, andesite, grit, diorite, diabase, travertine, sandstone, shale, dolomite, conglomerate, phosphatic rock, evaporite, mudrock, marble, slate, eclogite, schist, quartzite and breccia.
Ideal for the classroom! Large selection of both rocks and minerals Supplied in attractive presentation case
