alloy
steel, pig iron and stainless steel and also cast iron
Oxygen has a fondness for metals and it readily gloms on to them. In a sense, what we call "rocks" are various kinds of rusted metals.
Potassium is a METAL. These distinctions are quite arbitrary, as all elements have more or less metallic character - there are no "true" metals or non-metals (we call the ones we can't decide on "metalloids") Potassium has a very high metallic character .
Mineralogists call an element that occurs naturally in its pure form uncombined with other elements a native element. These elements are typically found in nature in their pure metallic form, such as gold, silver, and copper.
You would call them pure metals or simply elements, when a metal is mixed with another, usually for dual properties (e.g steel and aluminum alloy - in planes because it is light and strong) it is called an Alloy.
Metallic minerals are formed through a variety of processes, such as cooling of magma, precipitation from hot fluids, and metamorphism. They can also be concentrated through weathering and erosion of rocks containing metals. The specific conditions under which metallic minerals form determine their composition and properties.
A soft malleable conductive element is typically referred to as a "metal." Metals have high electrical conductivity and can be easily shaped or molded due to their malleable nature.
A metal that contains other elements to give it specific properties is called an Alloy. Many metals can contain other elements to give the metal specific properties. Steel is an alloy of Iron and carbon. Stainless steels contain various other alloying elements such as Chromium and Nickel.
Germanium is a solid at room temperature and is a nonmetal and the call name is (Ge)
Alloy
No, "dixode" is definitely not an element. If the questioner meant "dioxide", that is also not an element, but rather is part of the name of inorganic compounds that contain two oxygen atoms per formula unit. Some persons might call the element oxygen "dioxygen", because it contains two atoms per molecule.
Rocks and Minerals that contain elements extracted through mining are called Ores. The rocks that contain the minerals are called ores, The minerals that they contain are called ore minerals, and are extracted to be processed in order to recover whatever element it is that is being mined.