The collections measures at 7"x3 1/2". These collections are pretty and practical, and would look nice mounted on a wall with double-faced tape. The Native Rocks Collection includes 21 specimens-
Basalt, Pumice, Gypsum, Sandstone, Flint, Gneiss, Slate, Pink Granite, Dunite, Shale, Ironstone, Siltstone, Serpentine, Marble, Gray Granite, Obsidian, Conglomerate, Limestone, Coal, Quartzite, and Mica-Schist.
