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Yes.
Travertine might be called porous. Pumice might be considered metamorphic.
Salt beds are available in Texas, Ohio, Kansas in US.
Uranium is extracted from ores, from mines. But be sure that uranium (of course in very low concentrations) exist around us in ocean waters and drinking water, in granite and coal, in soils and phosphates, also in your body etc.
Many companies do. Martin Marietta Materials and Vulcan a two of the largest in the US.
Yes.
arizona
There are a total of fifty-two coal mines in the United States. The state with the most collieries is Wyoming which has thirteen coal mines and they are surface mines.
it can be found in coal mines and coal reserves across the world. there are three places in the US that there is tons of coal.
They all have the same amount of gold mines.
There are numerous gold mines in California, Nevada, Utah, Colorado, Arizona and Alaska- but there has been SOME gold found in every state.
A list of uranium mines in USA is at the link mentioned.
There are a number of coal mines in the US that are quite large and profitable. The vast majority of these mines are located in Wyoming, which has the largest coal extraction rates of any state.
Where is gold found in florida
Many mines of many kinds, producing many things, are located in the USA.
They can be found where ever rain most occures.
The RiverPine Mines