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This list of gold mines in the United States is subsidiary to the list of mines article and lists working, defunct and future mines in the country and is organised by the primary mineral output. For practical purposes stone, marble and other quarries may be included in this list.
This is a list of Superfund sites in Missouri designated under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) environmental law. The CERCLA federal law of 1980 authorized the United States Environmental Protection Agency (EPA) to create a list of polluted locations requiring a long-term response to clean up hazardous material contaminations. [1]
This list of bullion dealers includes notable companies and organizations that deal in precious metals, such as gold and silver. This list is incomplete ; you can help by adding missing items . ( September 2014 )
Walter Luhrman founded a precious metals refinery in Jackson, Ohio under the name Jackson Precious Metals in 1974. It would run into financial difficulties in the 1990s and he would sell it to Alan Stockmeister, a Jackson native who own owned many local area businesses, including the local newspaper.
The three medals are his 1988 Gold (estimated to be worth around $800,000 to 1.2 million), 1984 Gold (estimate: $600,000 to 900,000), and 1976 Silver (estimate: $200,000 to 300,000).
Gold occurs principally as a native metal, i.e., gold itself.Sometimes it is alloyed to a greater or lesser extent with silver, which is called electrum.Native gold can occur as sizeable nuggets, as fine grains or flakes in alluvial deposits, or as grains or microscopic particles (known as colour) embedded in rock minerals.
In reality the diggings were done by Indians mining an outcropping of exceptionally fine flint. Another rumor for its naming stems from the Indian dig sites, early settlers thought the flint mines were Spanish gold mines. It was re-platted in 1870. [6] The Golden City Herald served the community from 1881 until Dec. 28, 1972.
16th century cupellation furnaces (per Agricola). Cupellation is a refining process in metallurgy in which ores or alloyed metals are treated under very high temperatures and subjected to controlled operations to separate noble metals, like gold and silver, from base metals, like lead, copper, zinc, arsenic, antimony, or bismuth, present in the ore.