Mineral and Rock Kits
Hardness Kit, 9 Specimens
Contains: Talc, gypsum, calcite, fluorite, apatite-triphylite, feldspar, quartz, beryl-topaz, corundum.
Contains: Talc, gypsum, calcite, fluorite, apatite-triphylite, feldspar, quartz, beryl-topaz, corundum.