KIMBERLITE PIPE eruption.
And here is another interesting video on the Internet.
ARCTIC STAR 3D KIMBERLITE ANIMATION Very nice!
And below are some photos of kimberlites, diamonds, books, etc.
|High wall with exposed diamond-bearing kimberlite breccia at the Kelsey Lake mine, Colorado. If you have Google Earth on your computer, search for 'Kelsey Lake, Colorado' to see the location of this former diamond mine.|
|Diamondiferous kimberlite from the Sloan 2 pipe in Colorado. Note the large, rounded pyrope garnet. The Sloan kimberlites have identified diamond resources and remain mostly untouched. DiamonEx had acquired the Sloan property, but the 2008 economic collapsed took its toll on diamond prices, the company, and the world. So, it still holds $millions in diamonds.|
|Kimberlite (Devonian) and Granite (1.4 billion years old) contact exposed by bull-dozer, Schaffer|
kimberlite complex, Wyoming.
|Buried kimberlite dike in Wyoming - the kimberlite underlies the dirt in the right half of the photo where there appears to be thicker and slightly higher vegetation.|
|Diamonds in the US? From Diamonds and Mantle Source Rocks in the Wyoming Craton - by W. Dan Hausel, 1998. The diamond-shaped figures represent reported diamonds. The triangles are kimberlite localities (open triangles are diamond-bearing kimberlites), squares are high-pressure volcanics similar to kimberlite, + are lamprophyres and lamproites, the + enclosed by a diamond is diamond-bearing lamproite, the white diamond is the location of the Great 1872 Diamond Hoax site, the dots represent kimberlitic indicator mineral anomalies of note.|
|Some of the high-quality gem diamonds from Kelsey Lake mine (photo courtesy of Howard Coopersmith).|
|Close-up of diamond surface with some of the distinct trigons etched in the surface.|
|Popular book (129 p) on diamonds in the US - you might be able to buy this at the Wyoming Geological Survey at the University of Wyoming.|
|Book on rocks and minerals that also has some brief information on diamonds and on kimberlite and lamproite. Available at Amazon|
|Another popular book on gemstones (and diamonds) that the Wyoming Geological Survey forgot to reprint after the current edition was sold out.|
|Gem-quality kyanite from central Laramie Mountains (we found billions of carats of this gem - but it remains undeveloped). Some of this gem is found with iolite, ruby and sapphire in the central Laramie Mountains.|
|Free pamphlet on diamonds - this may still available in Wyoming. If not, you can download a copy at the GEM HUNTER website.|
|Rough diamond from Wyoming - wow, aren't these stone beautiful! Note how the gem has kind of a greasy luster. This is characteristic of diamond.|
|Recent publication on geology of the Leucite Hills lamproites and possibilities of diamonds in the Leucite Hills lamproites in Wyoming (may or may not be available at the Wyoming Geological Survey). I loved working in this area. While conducting research on diamonds, we recovered diamond-stability chromites from some of the lamproites (this suggests the chromites formed under pressures and temperatures similar to that of diamond formation; thus there is a possibility for diamonds in this region).|
Essentially all of the projects at the Wyoming Geological Survey were considerably underfunded and so was this one. Even though these rocks may contained diamonds, we were unable to test any material (other than a couple of rocks). Elsewhere in the world, there is a correlation between olivine and diamond content in some lamproites, so I was excited to find a couple of anthills with considerable olivine in the northeastern portion of the Leucite Hills. After looking at some olivine with a handlens, it was apparent nearly all was gem-quality. So I took the two anthills in sample bags - and Robert Gregory processed the material (no diamonds were found), but we recovered 13,000 carats of gem-quality peridot from this sample!
|Diamonds in the world - great book, but price is too high (don't blame me, I receive no royalties for this book and the publisher ignored our protests about the price - 374 pages.|
|Book (42 pages) on a little known diamond-bearing kimberlite district in Wyoming. We didn't find any diamonds (found lots and lots of diamondbacks) - nor did we test any material for diamonds. However the geochemistry of all of the rocks showed that they all originated from the diamond-stability field and a couple of diamonds were reportedly found in the early 1980s by Cominco American.|
|Ruby from Granite Mountains, Wyoming. Specimen found by Eric Hausel.|
|Guide to finding gems, gold, diamonds and rocks in Wyoming. If you can't find it at the Wyoming Geological Survey, you can download a copy from the GemHunters website.|
There are many gemstones in Wyoming. Most people would have laughed if you told them in 1975 that Wyoming had the greatest variety of gemstones in the US. In 1975, Wyoming had known jade deposits and some agates - but that was about all.
Over three decades, the more I looked, the more I found: dozens of overlooked gemstone deposits and evidence for hundreds more which included commercial gold deposits along with more than 100 gold anomalies. It was my intention to continue this research along with educating the public to help YOU find gemstones, diamonds and gold using methods I found successful in finding a few hundred mineral deposits.
But morally and ethically, I could no longer work for the Geological Survey or the State of Wyoming, so I moved on. Since 2006, there have been no discoveries of new metal or gemstone deposits.