Useful Mineral & Rocks Collection
This collection contains natural specimens of some of the most widely used rocks and minerals, showing the principal use or product derived from each. The collection contains 15 specimens glued to the inside. The minerals are: Calcite, Feldspar, Fluorite, Garnet, Gypsum, Olivine, Talc, Mica, Sulfur, and Quartz. The rocks are: Coal, Granite, Limestone, Shale, and Siltstone. The collection is packaged in a recyclable plastic container.