Identify, sort, and classify rocks from the 3 major rock groups (igneous, sedimentary, and metamorphic). Check the classification using the control charts.
The following 18 rocks are included: andesite, basalt, gabbro, granite, obsidian, rhyolite, breccia, conglomerate, limestone, rock salt, sandstone, shale, gneiss, hornfels, marble, phyllite, quartzite, and slate.
Includes:
Sorting cards are approx. 3¼" x 3¾", charts are 8½" x 11".