Ahaha. You might be thinking of the Superman Krypton indeed, but you won't find any Krypton ore on Earth. Krypton is actually a noble gas at room temperature. It's colorless and odorless, also.
The ore is cassiterite, the only commercially important source of tin.
An ore is a rock that contains minerals that are useful. For an ore to be considered an ore reserve, it must be economically viable (the value of the extracted mineral must exceed the cost of extraction and processing) and must be technically and legally possible to extract.
Smelting
Bauxite . Chemically it is Aluminium oxide (Al2O3)
Argentite, or silver glance, is the most important and common of silver minerals.
Perhaps the most common iron ore is taconite.
The ore is cassiterite, the only commercially important source of tin.
Neither. Krypton is an element with the symbol Kr and atomic number 36. The name means "hidden one". It is found in trace amounts in the atmosphere.
The most common aluminium ore is bauxite.
Copper
Ore is a rock that contains minerals , an example of an ore can be almost anything!
It is the most common and important aluminum ore, and also contains decent amounts of iron and titanium.
The most common ore of copper is Copper pyrite CuFeS2 but other ores are also exist.
The most common ore of aluminium is bauxite.
An ore is a rock that contains minerals that are useful. For an ore to be considered an ore reserve, it must be economically viable (the value of the extracted mineral must exceed the cost of extraction and processing) and must be technically and legally possible to extract.
krypton and barium are both naturally occurring non-radioactive elements. krypton can be extracted from air by fractional liquefaction. barium ore can be mined and barium extracted.
Tin: cassiterite Mercury: cinnabar Uranium: pitchblende