Mainly uranium but vanadium is also often found in close association with this ore.
iron
Uraninite, AKA pitchblende, is an ore of uranium.
It is so because metals cannot be extracted from minerals in a convenient way. E.g.:- Aluminum metal is found in both minerals: clay and bauxite. Aluminum metal is extracted only from bauxite in a convenient way. So, bauxite is an ore of aluminum. On the other hand, it is not extracted from clay so clay remains only as mineral not ore of aluminum.
Salt can be extracted from mines or sea water.
Pitcheblende also known as uraninite is one of the primary ores of uranium. Pitchblende is very rich in yield containing 50-80% of the element.
Pitchblende, carnotite, uraninite, phosphates, etc.
Metal cannot be extracted from Gold, as Gold itself is a metal.
Cassiterite is the main ore of Tin.
Iron is extracted from haematite.
Aluminium is extracted from alumina.
Lithium is extracted as the molten metal by a process of electrolysis.
copper
calcium
No, ore is not the crudest form of metal. Ore refers to a naturally occurring rock or mineral from which a metal or valuable mineral can be extracted. The crudest form of metal is typically the metal in its raw state after it has been extracted from the ore and before it has been processed or refined.
Titanium is extrated.
iron
Iron