Small-Volume basaltic volcanism has occurred intermittently throughout central Mongolia for many thousands of years ago. When lava pours out and cools slowly over time, a curious geometric pattern emerges: long columns of hexagonal basalt rock, sometimes forming cliffs that stretch hundreds of feet into the air. It is the nature of basaltic lava cooling that allows this to happen: this lava is hotter and moves faster than other kinds. As it cools from the bottom up and from the center outward, long fractures form columns that at times take on astoundingly clear-cut hexagons. The whole process is called columnar jointing.
Mongolian Hexagon Basalt is famous for its hexagon shape and natural color. Popular colors are Pink, Grey, Rusty, Yellow and Green. It can be used in almost every application where granite or other stone is found. Whole columns can be used to create different garden & landscape decoration products, such as fountain, columns, table & bench, lantern, flower-pot and carving items. The inner black material is mainly used for paving, tile, kerbstones applications.