THE INDUSTRIAL MINERAL DEPOSITS OF TASMANIA Mineral Resources Tasmania ... defined as rock, stone, gravel, sand and clay used in construction, bricks and ceramics. About 100 quarries are used as a source of road construction materials on land administered by Forestry Tasmania.
Industrial minerals are nonmetal and nonfuel mineral resources including, for example, crushed rock, gravel, clays, sand (silica), gypsum, bentonite, and barite. They are the fundamental ingredients of roads and buildings, and they are essential for many industrial, commercial, and personal products and activities. Read more.