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​The Green River Fossil Formation - (Post)
The Green River Fossil Formation is one of the best known and most prolific fossil locations in the U.S. About 55 million years ago, during the Eocene period, the Rocky Mountains were formed.
The History of Mining in Arizona - (Post)Mining in Arizona has always been very important. Over 900 different minerals have been discovered in Arizona. Hundreds of towns in Arizona owe their very existence to mining operations. Arizo ...
Filing a Mining Claim - (Post)I’ve been writing a series of blogs about rockhounding. But what if you are wanting to collect rocks for commercial purposes or you actually find a cool rock or mineral on one of your rockhound ...
State Gemstones, Rocks, Fossils and Minerals - (Page)Does my state have a official state gemstone, rock, mineral, or fossil? Alabama designated Hematite as the state mineral in 1967, Hematite as the state rock in 1969, and Star Blue Quartz as ...