Pure white marble is the result of metamorphism of a very pure (silicate-poor) limestone or dolomite.
Marble is mined throughout the world, but notable locations include Italy, Brazil, India, Turkey, and Greece.
Marble as a result of its base structure as limestone is a relatively soft material. Although not as soft as some top materials, namely cultured marble, it can scratch, thus care in handling must be taken with this material. Further, its soft structure makes it susceptible to open pores. Proper sealing of marble can make a difference in its stain fighting properties. Finally marble’s structure typically contains far more cracks, fissures and stress points that can make it difficult to machine for vanity tops.
A solution to some of the difficulty in fabricating marble is the development of marble composites. These aglomerate marble stones consist of marble chips combined with a small amount of resin bonding. These newer materials have the benefit of the beauty of marble with the added bonus of being very easy to machine. However, one still has to be cautious in proper sealing, the use of acids as well as being cautious with hard metals as this material is still susceptible to scratching.