Union Road Agates
St. Louis, MO US
Uploaded By Scott (webmaster)
Uploaded on Monday, June 28, 2010 at 09:35:43 PM
Viewed 13375 times
6 upload(s), 29 comment(s)
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Location Type: Public Access
Details: These apparently are some nice agates found in St. Louis. I noticed an item on eBay and I guess it is the real deal.
Directions: One collector online says he collects near the surrounding area of the I-270 and I-55 intersection including Union Road (duh).
Google Map: (The GPS marker is only marking the nearest city.)
Follow this Link to Get Google's Directions
Reference Info: No Reference Used
Tags: Union Road agate,
agate,
St. Louis,
Missouri,
I-270,
270,
I-55,
55,
Union Road
Sample of Photos of specimens found at location (View All)
Photos of Collector Specimens Found in the Same City (View All)
Comments (Most recent are first) | MarkMRocks - Feb 5, 2022 08:47:18 PM EST
Whole Union Road Agates are most desirable, but the partials and fragments are great just as found. Sometimes they require cleaning with iron out and bleach, and can be selectively polished to bring out their beauty. |
MarkMRocks - Feb 5, 2022 08:05:08 PM EST
Yes, there are many Union Road Agates still out there. I started finding them in 2018, long after hearing that they were gone. By now, most of the areas have indeed been developed, built over, and paved. The local creek tributaries are great places to collect fragments and whole nodules, plus 345 million year old fossil coral and sea urchin spines, often in association with these sedimentary agates. The agates are the hardest remnants of long eroded St. Louis Limestone layers (few exposures still exist where they’re In-Situ). The creeks cut into an ancient stream bed, which contains glacial material and rounded yellowish quartzite pebbles that tumble well, too. Avoid parking on the Interstates or walking on the railroad tracks. I’ve gotten permission to collect rocks from new home sites too. MANY chert nodules from this St. Louis Formation, but only a small percentage are agates or geodes. Best to cut/saw. Cracking open can destroy otherwise beautiful specimens! |
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