Mica and similar minerals | Frankensaurus
The Sillon de Bretagne is composed of granite; the rest of the region is a series of low plateaus covered with silt and clay, with mica schist and sediments found in lower areas. Nantes - Wikipedia Rich mineral resources are available in Sudan including asbestos, chromite, cobalt, copper, gold, granite, gypsum, iron, kaolin, lead, manganese, mica, natural gas, nickel, petroleum, silver, tin ...