Agate bonanza and more, with gorgeous Fairburn

The flip side of the coin from last Friday.  Other than looking for birds, I also spent a lot of time walking the Buffalo Gap National Grasslands looking for agates, fossils, and whatever other goodies I can find.  It was a spectacular day (other than twice getting poured upon, on a day forecast to be totally dry), including a GORGEOUS Fairburn agate find.  Here’s some of the highlights of the day:

Fairburn Agate - Buffalo Gap National Grasslands, South Dakota

Probably the best Fairburn Agate I’ve found in my LONG and illustrious career as a rockhound (ok, in the 3 weeks I’ve been doing this). I paid the price for this one! I found it as far away from the car as I walked all day, and it started absolutely pouring on me just 1 minute after finding it.

Bubblegum Agates - Buffalo Gap National Grasslands, South Dakota

A collection of some of the best bubblegum agates from the day. The ones shown here are all small ones (1 1/2″ or less).

Bubblegum Agate - Buffalo Gap National Grasslands

A very large button (?) agate (about 3″ across). I haven’t found any agates like this that are so well preserved and so big.

Horn Coral - Buffalo Gap National Grasslands

A bit of horn coral. I’m told this is a “traveler”, that the geology of the area is too young to host this. It’s a traveler from the Black Hills, washed down like the agates and other goodies you find here.

Unusual Prairie Agate - Buffalo Gap National Grasslands, South Dakota

A rather unusual Prairie Agate. The rest of the agate looks like many typical prairie agates you find here, with the jagged, orangish-brown, diffuse banding. However, on this one side are these starkly different, very fine, parallel bands that are not found on any other prairie agate that I’ve found so far. Lacks the “holly leaf” pattern of a real Fairburn, but the thinness of the bands and their perfectly parallel nature reminds you of one.

Prairie Agates - Buffalo Gap National Grasslands, South Dakota

More typical prairie agates. The ones you find most often are the ones with warm creamy and orangish tones, but there are also some cool ones with black, reddish-tones, or other colors.

Agate

One day away from the 4th of July, so I thought it was very appropriate to bring back this red, white, and “blue” agate. The colors even are arranged correctly!

Petrified Wood - Buffalo Gap National Grasslands, South Dakota

A variety of petrified wood pieces. This stuff is just everywhere, and occasionally you run across a much bigger piece that weighs several pounds.

Prairie agate - Buffalo Gap National Grasslands, South Dakota

A large prairie agate (almost 4″ across) with an unusual pattern on one side.

Bubblegum Agate - Buffalo Gap National Grasslands

A bit bigger bubblegum agate…or at least that’s what I think it is. Reminds me I guess of what a really worn down bubblegum agate might look like, with the stuff in between the “eyes” wearing away more quickly? That’s my (very) amateur interpretation.

Bubblegum Agate - Buffalo Gap National Grasslands, South Dakota

A somewhat larger (~2″) bubblegum agate (perhaps an “eye agate?”), with a pattern of nodules that almost make it look like a brain coral in spots

Fossil plant bits

I think this is just a mix of fossilized plant bits. Again, my amateurish interpretation, but that’s what I’ve found online

What are your thoughts? Comment here!

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