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Of the nine volcanic pipes found, three were reported to contain diamonds, and two (KL-1 and KL-2) were mined. At present, there are no commercial diamond mines operating in the United States. Additional textual information about a site or mine. 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.
Fax: (214) 409-1425, © 2014 - 2019 Heritage Auctions | All Rights Reserved, A Paddington Bear Guide to Fine & Decorative Arts, Women and Handbags: the Love that Dare Not Speak its Name. Many fantastic diamonds come across my desk to be cataloged and put up for auction. All we can do is use our knowledge of the earth and our best judgment and hope to get lucky and find a gem—like the 16.87 carat stone in front of me now.
Mineralogists first discovered the presence of kimberlite (an igneous rock that sometimes contain diamonds) in the region in 1975, while studying the area’s limestone formations. 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. Visit our jewelry department to view upcoming auctions and to browse our auction archives. 877-HERITAGE (437-4824) These geospatial data and related maps or graphics are not legal documents and are not intended to be used as such. Unfortunately, operations at the Kelsey Lake Mine closed in late 1997, after the parent company sold its mining operations to focus on exploration. Considerable financial investments, and years, even decades of research and study go into determining whether starting a mine will be profitable.
February 4, 2015.
Physiographic area where the resource is found.
Although the mine produced thousands of carats of stones, it’s been closed for years and the land reclaimed to look like the surrounding high plains prairie. McKenzie estimated in 2001 that there remained ~340,000 mineable diamond carats at Kelsey Lake, which would equate to a ~10 year mine life at a rough recovery rate of ~3.5 carats per … Learn more about the Bureau of Land Management, Public Land Survey System, and mining claims. Kelsey Lake Mine. 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.
1 World-class significance is determined by total endowment of the contained commodity.
This month, however, a diamond has come to visit from an unexpected source much closer to home. Make me an Ambassador. * Mine bounds on map indicate the general area that a mine occupies. Refusing to give up, one particularly adamant local geologist, Howard G. Coopersmith, took matters into his own hands, and by 1987, his diamond exploration company confirmed the presence of two diamondiferous kimberlite pipes at Kelsey Lake. As of June 2008, many entries were classified as significant under less strict rules. Bid or buy antique and vintage estate jewelry and gems for sale, value your item, or request a free appraisal to sell your collection. In addition McKenzie Bay estimated that due to Redaurum's outdated equipment only 40% of the mined ore yielded diamonds, on the order of 1.5 cpht. Or maybe it was found in a marine deposit off Africa’s Atlantic coast and sent to Belgium for polishing, then imported through New York. The price of diamonds depends mainly on the 4 C's of diamonds - carat, color, clarity, cut. ** The mine central point is based on an average of the mine's bounding box(es) and does not necessarily fall on the claim itself.
The user is responsible to verify the limitations of the geospatial data and to use the data accordingly. I often wonder about the exotic locales from which they were sourced…India, Brazil, Russia, South Africa (a name synonymous with diamond mining) or perhaps a more recent source, like Australia. In 1997 it was reported that the mine was
© TouristLink.com 2020, All Rights Reserved. Learn about USGS mines. Whatever the path may have been, I am confident that the diamond in hand is far better traveled than myself. However with the rising prices of vanadium McKenzie Bay shifted their focus away from Kelsey Lake and began mine reclamation procedures in 2003. So if you want to hunt for these beauties, you’ll need a checkbook. As they tried to slice through the rock, tools were getting damaged, which could only mean one thing— the presence of the hardest substance on earth—diamond. Northwest corner of West Airport Freeway and Valley View Lane Required fields are marked *.
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