Introductory Earth Science Rocks and Minerals
If you're looking for a great rock & mineral collection, THIS is the one to get. This is a very well presented collection. The numbers fell like they are glued on very securely, and wont come off easily. Each rock is a good size (about 2cm by 3cm) and looks to be good quality.
Geology rocks! Kids who like geology will love the Geosciences Industries 13357 Introductory Earth Science Classroom Rocks and Minerals Collection. It includes 75 mineral and rock samples, each identified and numbered on the collection index sheet so that kids can match and study them. Among the rocks are different types: sedimentary, igneous, and metamorphic.