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Dwarves' Earth Treasures Online Rock Shop:
Union Road Agates
Just South of St. Louis, Missouri
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     The Union Road Agates are in form of chert concretions, and they were collected by Bill T. just south of St. Louis, Missouri, along the Union Road near I-55 highway before the site was overlaid with shopping districts. Really fascinating agates they are in spite of their heavily weathered nature (distorted colors, fractures, etc).   It seems that very small percentage(5-10%) of any Union Road nodules contain agates, and unfractured quality agates in whole nodules are quite difficult to find. The most common colors are white, black, tan, brown, yellow and ivory, while other rarer colors are red, orange, light blue, lavendar and pink. Bill T. has found only ONE purple Union Agate so far. Since the agates are very porous, the color of many Union Road Agates had been bleached or redistributed by the water from nearby Mississippi River so it is rare to find the agates in their origjnal colors that had not beem "messed up".  Some agate fragments remind me of fairburn agates because of their bold colors. The fractures are somewhat common along the Union Road nodules due to being weathered out of their limestone host by Mississippi River. Some Union Road geodes contain interesting minerals like geothite needles and sometimes millerite.

Updated October 2010
Larger pictures of any interested specimens can be provided at request
2009yURDn014-$60 2009yURDn015-$100
URD2008n32-$100, some minor fractures URD2008n32-$100, some minor fractures
or $150 for the pair

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