If you need pure black basalt stone,and if you want to make it
for outdoor paving,flooring tiles, in polish and flamed surface,then we advise
you select mongolia black basalt stone.
In the China, there has many types black basalt materials,the Mongolia
black stone is most cheap and popular stone in market now. This material can not
cutting in big slab as full slabs,but it is can be cutted in half slabs and
tiles.
http://www.kungfu-stone.com/groove-mongolia-black-stone.html
http://www.kungfu-stone.com/groove-mongolia-black-stone.html