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Silver is found in lead, zinc, and copper ore deposits. A full two-thirds of the silver resources in the world are found in association with these other metal ores. The remaining third is found in association with deposits of gold. The most important ore mineral of silver is argentite (Ag2S, silver sulfide). In the United States, Nevada is the leading producer of silver where it is a by-product of gold mining. Other significant world producers of silver are Mexico, Peru, Chile, and Canada. A number of other countries produce smaller amounts of silver.
Minnesota
the prairies are rich in petroleum and natural gas. gold,silver,copper and zinc are also found here. there are large deposits of iron ore near lake superior.coal is found along the foothills of the rocky mountains and uranium is found near lake athabasca in canada. the northen part of the prairies has large deposits of potash.
Pegmatites.
They are similar because they are all exposed to the surface and they are all types of mining.
extrusion
layered intrusion.
You mine gold ore from gold deposits and then smelt them if you are a prospector; you get gold ingots. Gold ore can be found in the North Downs and probably many other places.
canada, afganistan
dahod,ahmedabad
many, but not all, copper ore deposits also contain gold
This category covers establishments primarily engaged in mining gold ores from lode deposits or in the recovery of gold from placer deposits by any method.
in the ground somewhere
Platinum, like gold, can be alluvially transported from a lode and found in ore-grade sand deposits, so yes, conceivable, platinum ores can be found on the beach. Platinum nuggets from placer deposits are far rarer than gold nuggets and are highly valued by collectors.
Ore bodies.
In canada
Charles Frederick Park has written: 'Manganese deposits of Cuba' -- subject(s): Economic Geology, Geology, Geology, Economic, Manganese mines and mining, Manganese ores, Mineralogy, Mines and mineral resources, Ore deposits, Volcanic ash, tuff 'Preliminary report on gold deposits of the Virginia Piedmont' -- subject(s): Gold mines and mining 'Ore deposits' -- subject(s): Ore deposits