Product Description
Designed for general classroom use, this kit includes specimens in the following groups: igneous, sedimentary and metamorphic rocks, ores, gemstones and minerals in the scale of hardness. 50 specimens approximately 25mm.
Designed for general classroom use, this kit includes specimens in the following groups: igneous, sedimentary and metamorphic rocks, ores, gemstones and minerals in the scale of hardness. 50 specimens approximately 25mm.