Does the USGS have reports on the background levels of elements in soils and other surficial materials?
At today's level of consumption, the average newborn i
To maintain our standard of living, each person in the United States requires over 48,000 pounds of minerals each year:12,528 lb. of stone9,385 lb. of sand and gravel888 lb. of cement280 lb. of clays
Of the 1.52 billion metric tons of copper discovered t
Of the 193,000 metric tons of gold discovered to date,
Of the 1,740,000 metric tons of silver discovered to d
Fool's Gold can be one of three minerals. The most common mineral mistaken for gold is pyrite.
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