Bluestone tiles are medium grained dark and heavy rock, harder than granite. The term "bluestone" in Britain is used in a loose sense to cover all of the "foreign" stones at Stonehenge. It is a "convenience" label rather than a geological term, since at least 20 different rock types are represented. One of the most common rocks in the assemblage is known as Preseli Spotted Dolerite—a chemically altered igneous rock containing spots or clusters of secondary minerals replacing plagioclase feldspar.

Bluestone was also used extensively as cobblestone, and for kerbs and gutters, many examples which still exist in some of Melbourne's smaller city lanes and 19th Century inner suburban lanes. Crushed bluestone aggregate, known as bluemetal, is still used extensively in Victoria as railway ballast, road base, and, combined with bitumen, as road surfacing material, as well as in concrete making.

Bluestone tiles offer an excellent hard durable surface offering good scratch and slip resistance. Ideal for all commercial, home, internal and external applications. Bluestone tiles can be used for indoor or outdoor areas but it is important that you lay them on the correct base.