Earth Science

This selection includes 11 different types of stones and minerals: 250g river pebbles, 250g black small polished stones, 250g Tiger's Eye small polished stones, 250g white small polished stones, 250g assorted small polished stones, 60g small gemstones,...

This selection includes 14 different types of natural materials: 2 willow balls, 60g branch chips, 60g ovular branch offcuts, 60g circular branch offcuts, 60g rattan slices, 3 bark squares, 250g river pebbles, 250g small polished stones, 60g small...