There is no mining for diamonds in the United States. Canada, however, does have mining operations. Rio Tinto's headquarters are in Yellowknife, NT.
frick mine
The health and safety regulations on mining in the US are issued by the Mine Safety Health Administration (MSHA), and agency of the US Department of Labor..
From the Australia economics Wikipedia page:"Australia's Argyle mine is the second largest diamond mine in the world estimated to produce 12.6 million carats in 2014, worth over $500 million."and". . . the total value of the Mining Industry in 2009-10 was 8.4% of GDP."and". . . GDP of US$1.525 trillion as of 2014."All of which could lead us to the conclusion that diamonds per se contribute, but not significantly, to Australia's economy.
Boron, or borate or borax, is mined in several places. One mine in particular is in California (USA), approximately 75 miles north of Los Angeles. US Borax Boron Mine is the largest open pit borate mine in the world. US Borax is owned by the mining conglomerate Rio Tinto, the third largest mining company in the world.
I don't know the deepest mine in the US but Resolution Copper Mining's #10 shaft in Superior, AZ is more than 6000ft deep
The most popular location for finding diamonds is in the Crater of Diamonds State Park, in Arkansas. This state park is open to whomever wants to dig for stones. (Read more, below.)Diamond mining per se does not appear to be a viable industry in the United States. (Read more, below.)
It can be either one, depending on how the mining is conducted. In past years, areas were strip mined, and waste materials from the mining were left to pile up- in many cases, unsafely. Mining regulations in the US now require that a mine post a monetary bond to restore the land after mining ends. That includes putting topsoil back, and planting plants.
Arkansas....the diamond mine is known as the Crater of Diamonds and is open to the public for a small daily fee. Everything that you find is yours to keep. The largest diamond ever found in the United States was found there. The nearest town is Murfreesboro.The Crater of Diamonds is a state park.
You can find diamonds in Arkansas, in the Crater of Diamonds State Park.
The USA Only Imports diamonds, diamonds are not natural to the USA
Arkansas is the home to Crater of Diamonds State Park, the only option for finding diamonds in any US state.
Go under the dwarf mine by the rope near mining cart. Find map on google to see which places have gold. There is a chance to get double ores there also if you qualify.