Potassium is found extensively as potash (KOH). It is mined in Germany, USA, and elsewhere. Minerals such as sylvite (KCl), carnallite, and langbeinite, are found in ancient lake and sea beds. That as Saskatchewan in Canada contains about 10,000,000,000 tonnes of potassium chloride.
The Geography of Indiana refers to the physical features of the land and relative location of U.S. State of Indiana. Indiana is in the north-central U.S. and borders on Lake Michigan.Surrounding states are Michigan to the north, Illinois to the west, Kentucky to the south, and Ohio to the east.entral Indiana refers to the 33 counties in the middle third of the state. However, many Hoosiers consider Central Indiana as the Indianapolis metropolitan area. The region's dominant city by far is Indianapolis.
Climate. Rivers. Lakes. Indiana is situated in the mid-western and Great Lake region of the United States. It shares its borders with Michigan to the north, Ohio to the east, Illinois to the west, and the Ohio River and Kentucky to the south. Also called Northern Lake, the land area is fertile and black in color, which is suitable for farming. 2  Till Plains: Till plains are situated in the center of Indiana. 3  Lying to the south of Great Lake Plains, it is a part of the Corn Belt and is characterized by vast fertile plains.