This mixed Rock and Mineral collection boxed set comes with 20 quality specimens covering both popular Rocks & Minerals. Ideal for educational purposes at all levels; school, college, university or individual use and particularly those who want to practice mineral and rock recognition. The specimens are supplied in a strong card board box complete with a coloured data sheet on the inside of the lid. The set includes: Conglomerate. Sandstone. Oolitic Limestone. Chalk. Pumice. Obsidian. Granite. Basalt. Marble. Slate. Calcite. Feldspar. Gypsum. Talc. Flourite. Graphite. Rose Quartz. Pyrite. Rock Crystal. Biotite Mica. The box size is 30cm x 25cm and is 4cm deep.
