Limestone high quality quarried limestone, called Indiana limestone. Many famous buildings in London are built from Portland limestone. Limestone was also a very popular building block in the Middle Ages in the areas where it occurred, since it is hard, durable, and commonly occurs in easily accessible surface exposures. Many medieval churches and castles in Europe are made of limestone. Beer stone was a popular kind of limestone for medieval buildings in southern England. Limestone and (to a lesser extent) marble are reactive to acid solutions, making acid rain a significant problem to the preservation of artifacts made from this stone.
Hokie Stone Hokie Stone Hokie Stone is a grey dolomite—limestone rock found near Blacksburg, in western Virginia. It gets its name from the traditional nickname attributed to students and alumni of Virginia Tech. Hokie Stone is quarried by Virginia Tech for campus projects and is prominently displayed on the majority of buildings throughout the Blacksburg campus. Hokie Stone is limestone infused with magnesium and calcium under intense pressure and temperature. Formation of the stone began 450 million years ago when the area that is now the Southwestern part of Virginia was covered by a shallow sea. Hokie Stone with impurities such as