Kimberlite pipes |
Kimberlite pipes |
Feb 28 2012, 10:41 AM
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#1
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Rock Bar! Group: Members Posts: 426 Joined: 6-February 04 Member No.: 84 |
Here's a little item I found on another forum.
http://www.sciencenews.org/view/generic/id...onds_to_surface This thin slice of a kimberlite rock from northern Canada, seen through a microscope and in polarized light, shows colorful minerals caught up in magma that rose from deep within the Earth. Leonard |
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Feb 2 2021, 02:17 PM
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#2
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Shovel Buster! Group: Members Posts: 118 Joined: 22-December 10 From: USA Member No.: 7,480 |
Hi MR,
Looks like you have some form of Garnet in that one specimen however its very unlikely to be Pyrope garnets as they are only formed inside Kimberlite. The other rocks looks interesting, not something I have seen before. And yes haha don't bother looking for anything else if you are looking for kimberlite. There are a few in Colorado but the diamond bearing ones are all tied up and off limits to everyone. However if you are keen you can look in this area 39° 4'34.29"N 105°16'33.17"W in CO there is rumoured to be a diamond bearing pipe there in the area... You have samples of what to look for go get it! Very good luck, lots of water and food off the 51. Have fun DD |
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Feb 2 2021, 07:43 PM
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#3
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Diggin' In! Group: Members Posts: 40 Joined: 29-January 21 From: Colorado Member No.: 225,540 |
DD,
Thanks for the input. Colorado School of Mines holds "office hours" periodically for the public where you can bring in samples for a geologist to look at and help id. I may try that, but from my own research, the only thing I can come up with is that it's an eclogite nodule. https://en.wikipedia.org/wiki/Eclogite How it got to where I found it is probably up for debate. Definitely going to poke around more in that area. I know that all the "KNOWN" worthwhile kimberlite has been claimed up in the area and/or is behind miles of litigation, private land, and barbed wire. However I know this beautiful women that lives up there and has been milling kimberlite for millions of years, but I just need to figure out where she sorted it all to... Thanks for the coordinates! I am very keen! Some close family lives not to far from there, so now I have an excuse to visit and an excuse to leave! Did some poking around on aerial photography and on macrostrat.org [(if you haven't seen this website you really should). It's a geological map of the whole world. The map is only as good as the source data so I imagine it's more accurate and useful in some areas than others. It can be tough to navigate and find your area of interest, but once you do... ] From what I can see from the air, there's promise in the area (and unclaimed areas from preliminary checks)! Thanks again DD! |
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