Hovholt

Natural flint nodules and pieces. Almost all of them are similar (same) in colour and its sort (earth-coloured gravel-sized nodules). Ballast-flint.本数据集包含天然燧石结核与碎块。其中绝大多数在色泽与品类上保持一致，均为土色砾石级燧石结核，即压舱燧石（Ballast-flint）。