| Famous Diamond
Mines Chart |
Crater of Diamonds State Park, Arkansas
Crater of Diamonds State Park is a 911-acre (369 ha) Arkansas state park in Pike County, Arkansas in the United States. The park features a 37.5 acres (15.2 ha) plowed field, the world's only diamond-bearing site accessible to the public. Crater of Diamonds State Park is situated over an eroded lamproite volcanic pipe. The park is open to the public and, for a small fee, rockhounds and visitors can dig for diamonds and other gemstones. Park visitors find more than 600 diamonds each year of all colors and grades.Over 29,000 diamonds have been found in the crater since it became a state park. Visitors may keep any gemstone they find regardless of its value.
country/region: UNITED STATES
Continent: North America
| Kelsey Lake Diamond Mine
At present, there are no commercial diamond mines operating in the United States. The only mine that has ever operated commercially was the Kelsey Lake Diamond Mine.Kelsey Lake Diamond Mine is a defunct diamond mine in Colorado, USA. It is located in the State Line Kimberlite District, near the Wyoming border, and consists of nine kimberlite volcanic pipes, of which two were open pit mined.The mine ceased operations in 2001.
Reserves/Resources: Of the nine volcanic pipes found, three were reported to contain diamonds, and two (KL-1 and KL-2) were mined. These two pipes are each approximately 10.5 acres (4.2 ha) in area, are at least 350 feet (110 m) deep, and are situated 0.5 miles (0.80 km) apart.When McKenzie Bay first acquired the mine, they estimated with their equipment improvements that they could recover 3.5 cpht from the ore. They also estimated that each of the two pipes being mined had about 340,000 carats worth of gems and could be profitably mined for about 10 years.
Products: The mine ran at half-capacity and produced almost 12,000 carats in 1996 and 9,000 carats in 1997.
Owner: Kelsey Lake was opened as a commercial diamond mine by Redaurum Limited in 1996. Great Western Diamond Company, a wholly-owned subsidiary of McKenzie Bay International Limited, purchased the property in 2000 and operated the mine until 2002.
country/region: UNITED STATES
Continent: North America
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