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Jackpot! Agate find on Buffalo Gap National Grasslands

Been stressful at work lately so I took off Friday and did something I’ve only done one other time this summer…head out to the Buffalo Gap National Grasslands and go rockhounding. It wasn’t the most pleasant of days! The forecast called for 75 and cloudy, but when I got about 60 miles away, the fog started getting thicker and thicker, and soon it was accompanied by a light drizzle.  Much to my chagrin, things were exactly the same at my favorite rockhounding spot southwest of Kadoka.  I ended up rockhounding from about 8 AM to 2 pm, and the temperature never got higher than 60, with the drizzle falling most of that time.

I found plenty of “good” material.  As many prairie agates as I could want, as always.  Bubblegum agates. Quartz. Petrified Wood. Jaspers. Adventurine.  But the “prize” for people searching out there is a Fairburn agate. Since we started doing this last summer, we’ve probably been out there about 8 times, and have found a Fairburn about half the time, and that’s with a good, hard days’ search each time.

As the drizzle was just thick enough to make you a bit miserable Friday, I was contemplating leaving. But as I paused for a second to assess my situation, I saw a bright yellowish-orange stone ahead of me, one that really stood out from the others around it in terms of the color.  Much to my delight, as I approached I saw some fine parallel banding…Fairburn! And a pretty good sized one, at over 2 inches in length.  I did continue rockhounding for  awhile before returning to the car and getting a good look at the banding.

A find that made a miserable weather day a whole lot brighter.

Fairburn Agate - South DakotaFairburn Agate - South Dakota

The Dakota Prize – Haiku of the Day

Dakota’s Prize

Dakota’s painted prize
Water, rock, and time conspire
A rainbow set in stone

Fairburn Agate - South Dakota

An elusive Fairburn agate, from the wonderful rockhounding area of Buffalo Gap National Grasslands in South Dakota. I’m headed there in the morning for a day of rockhounding, so what better time for my first ever ROCK-related haiku of the day? Such a difficult prize to find, as chances are all I’m back tomorrow without one, but OH so worth it when you do find one.

One more trip – Rocks and Birds

It was a beautiful weekend in much of South Dakota, so much so that the lure of one last rockhounding trip was too much for me to pass up.  With projected highs near 60, and just as importantly on the windswept plains of South Dakota, a lack of a wind, it seemed like the perfect day to roam around the Buffalo Gap National Grasslands. An added treat of birding the western part of the state at this time of year…all of the winter raptors that are arriving!

I started out rockhounding, and could tell it was going to be a great day.  I tried a little bit different spot, and immediately found it wasn’t as “picked over” as my typical spot near Kadoka.  Right away I was finding many bubblegum agates, some beautiful rose quartz, some amber-colored honey agates, prairie agates, and some big chunks of petrified wood. I also found several coral and shell fossils, including one cute little bubblegum agate with a crisp imprint of a shell on the back side.  The highlight…after only 10 minutes, I found a gorgeous Fairburn agate with an unusual, rosy-colored quartz center.  That piece alone would have made the trip worth it.

While I spent most of the day rockhounding, I also kept my eyes open for the arriving winter raptors. Rough-legged Hawks, as always, were in abundance in parts of the Grasslands. Ferruginous Hawks, Golden Eagles, a prairie falcon, and plenty of Red-tailed Hawks rounded out a day that finished with the spotting of a gorgeous, pure white, unbarred Snowy Owl on the drive back home. A great “last blast” out on the Grasslands, before the really cold South Dakota winter hits.

Fairburn Agate - South Dakota

A gorgeous Fairburn agate as I found it on the Buffalo Gap National Grasslands. On average this year, I’d say I find one Fairburn for about every 15 hours of looking, so it’s always a wonderful treat. This one was so unusual, in terms of that grogeous rosy center surrounding by the fortification banding.

South Dakota Agates, Jaspers, Petrified Wood, Quartz

The material I brought back. You can collect on the Buffalo Gap National Grasslands, but 1) only for private collections (no selling of material), and 2) can collect up to 25 pounds of material in a day. Given I usually only keep the smaller pieces (most are 2″ or less), that’s not a problem! But on this day, there were some BIG pieces of petrified wood I was tempted to bring home! If I had done so though, a couple of them would have used up my 25-lb allotment! Hence sticking with my “usual” agates and other material.

More South Dakota Agates

On Labor Day I again made the long trek to the Buffalo Gap National Grasslands of western South Dakota, a day to look for agates, fossils, petrified wood, and other goodies.  For the first time since we discovered rockhounding this summer, there were actually a number of other people out searching.  You can see how the known agate hunting locations would get picked over.  However, it’s quite similar to a visit to a busy national park like Yellowstone or Yosemite…just get away from the road a bit and you’re likely to have it all to yourself.

Despite several other searchers, I was able to find solitude just by hiking back away from the gravel roads in the area.  There’s no doubt there are more and better finds as you get away from the roads and places people park.  An interesting day, marked by a heavy haze all day from western US forest fires, but also a day filled with agates.  Here are a few agates from the day. Also the latest batch that’s gone through my polishing.  I’ve pretty much got it down now, and can get a real deep shine, but it’s a 2-month process from start to finish!  Always good to finish a batch and see what you get for all your hard work.

Fairburn Agate - South Dakota

This is one I would have loved to have found before it had worn down. I do think this is a legitimate Fairburn agate, but some of the bands are worn away in places. In others, you can really see the fine detail.

Fairburn Agate - South Dakota

The flip side of the same Fairburn. I think I’m going to call this one the “Bacon” agate, given the banding on this side.

Polished South Dakota jaspers and agates

The latest batch to finish in my small tumble polisher. I’m having much better luck now in getting a great shine, simply by 1) taking twice as much time, meaning 2-full weeks in each of the 4 polishing stages, and 2) using distilled water instead of our very hard city water. Just the choice of water has made a huge difference in the shine.

Agatized Syringopora Coral - Fossil

A piece I found earlier this summer that just made it through the polishing process. This is an agatized piece with bits of Syringopora coral fossils throughout. A unique and gorgeous little piece.

“Planetary Agates” from South Dakota

I have a new hobby! I got a new lens 2 summers ago. It’s a very high quality lens that enables some truly stunning, clear, crisp photos, but I just haven’t used it very much since it’s quite a bit different lens than the one I use to shoot birds.  Today I thought I’d give it a whirl, and in doing so, I may have created a new hobby for myself…taking photos of the planets!!  I was able to take photos of 12 different planets today, all while out on my back deck!  Yeah…yeah…THAT’s right… I took photos of TWELVE different planets, in the space of only about an hour.

Well…OK…they may LOOK like planets, but I’ll fess up…they’re not. I put my rarely used macro lens on my camera this afternoon, and started to take some documentary photos of some of the agates and other stones that my son and I have found over the last month on the Buffalo Gap National Grasslands here in South Dakota. After taking a few extreme closeup photos of one of our favorite agate finds, the composition of the photo, with the curve of the agate and the shadow behind it, made it look like a photo of a portion of a planet. I really loved the look of the macro shot, and just went with it, setting up other agates and trying to get “planetary agate” photos.  Here’s a collection of some of our favorite agate finds from the last month…

South Dakota Prairie Agate

“Planetary Agate #1” – This is part of a typical Prairie Agate, something that are relatively common on the Buffalo Gap National Grasslands. This is the photo that started the “Planetary Agate” series. The beautiful, cloud-like banding of a prairie agate definitely gives it a “planetary” vibe in this kind of view.

Fairburn Agate from South Dakota

Of the 12 “Planetary Agate” photos here, this one is perhaps the least “planet-like” given the sharp banding, but this Fairburn has been our best find so far. The gorgeous, thin, parallel banding of a Fairburn, coupled with that incredible translucent red “eye” do give it an otherworldly look.

Bubblegum Agate from South Dakota

This is a bubblegum agate that’s been through the tumbler a few times, revealing the gorgeous warm reddish-tones underneath. We’re DEFINITELY back on a firm “planetary agate” footing with this one.

Fairburn Agate from South Dakota

A planet’s surface, pockmarked by dozens of meteor collisions!! Or…perhaps it’s just a macro shot of a gorgeous Fairburn Agate from the Buffalo Gap National Grasslands of South Dakota. This is a very unusual agate, what we’ve called our “Easter Island Head” Fairburn. When we found it, it was all black, and looked like an Easter Island head. With a bit of polishing, the black gave way to this gorgeous, surreal Fairburn pattern underneath.

Prairie Agate - South Dakota

A very interesting “planet”, as this agate had all the typical markings of a prairie agate when we first spotted it. However, there were a few hints that other patterns were hidden underneath, and with a bit of polishing, some of the tighter banding more typical of a Fairburn agate were revealed. One of the more “planetary” looking of the 12 agate photos here.

Bubblegum Agate - South Dakota

Another bubblegum agate that’s been in the tumbler a while. The bubblegum agates we’ve found so far have been so fun to try in our tumble polisher. There have been some wonderful, surprise patterns on some of the tumbled bubblegum agates, including…this VERY planetary-looking pattern.

Prairie Agate - South Dakota

The typical colors of the prairie agates you find are warm orangish, tan, and white tones, but you do find other colors as well. Probably the second most common are bands of black and white. I believe from what a geologist friend told me, the blackish tones come from a touch of manganese? I guess the vertical bands in this shot make it a bit less “planet-like”, but still a beautiful, typical prairie agate from our state.

Prairie Agate - South Dakota

Not only does this portion of a prairie agate look like a planet, but the entire agate itself does! This is one of the larger agates we’ve taken back with us, a heavy, very round agate with some very interesting “windows” of other colors, such as shown here. Other than the banding, the prairie agates here also can have other patterns similar to this.

Prairie Agate - South Dakota

Another prairie agate that’s a bit different, in that the primary patterns are these elongated ellipsoids of white, surrounded by a thin “shell” of warm brown. Different pattern than the others…perhaps not so “planetary”…but a cool looking agate nonetheless.

Prairie Agate - South Dakota

This agate got my heart racing a bit when I first saw its edge poking out of the hard crust on the Buffalo Gap National Grasslands. The first thing I saw was that far right edge sticking out, and with a suggestion of the “holly-leaf” look on those bands, I thought I might have found South Dakota’s specialty, a Fairburn agate. Alas, while the markings may have some of the fortification-look of a Fairburn, this is definitely a prairie agate, but a BIG prairie agate with some of the most intricate banding of any prairie agate we’ve found. One of my favorites, and it makes for a nice “planetary agate” as well.

Bubblegum Agate - South Dakota

Another of the polished bubblegum agates, this one was a bit of a surprise when we first took it out of our tumbler after a “rough-polish” phase. The bubblegum-like nodules were worn smooth after tumbling, revealing very distinct fortification patterns that had the shape of a Fairburn, but not really the fine banding structure. Gorgeously colored little agate though.

Prairie Agate - South Dakota

The last of our “planetary agates”, this is another typical prairie agate, showing the most common kind of patterning that you see…broad, diffiuse, “cloud-like” bands. We hope you’ve enjoyed our little foray into “planetary agates!”

 

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

Finding Hidden Treasures – Fairburn Agates!

Fairburn Agate - South Dakota

The partially polished Fairburn Agate, with the black outer layers being worn away, starting to reveal the beautiful, characteristic banding pattern of a Fairburn Agate underneath. In this “profile” view, you can perhaps see why my son and I have dubbed this the “Easter Island Head” agate.

My son and I have have been bitten hard by the rock-hounding bug. We’re newly infected…we’ve only made two excursions in search of geologic wonders…but I fear a lifetime affliction may be forming. In those two trips, we went to an area of the Buffalo Gap National Grasslands where you’re allowed to collect agates, jaspers, petrified wood, or other geologic finds. The variety (and beauty) of rocks and minerals you find in the area is astonishing.  While we’ve certainly had a blast and had some wonderful finds, so far we have struck out on finding the “Holy Grail” of agates…the famed Fairburn Agate.

Fairburn Agates are one of the world’s most famous, and they’re found only here in South Dakota. They have an incredible fine, even banding, often displaying an incredible array of different colors. They were originally identified near Fairburn, South Dakota, on the outskirts of the Black Hills. However, they can also occasionally be found elsewhere in southwestern South Dakota, including the area of the Buffalo Gap National Grasslands where we have been searching.

In our two trips, we hadn’t identified any Fairburn agates, but we’ve certainly found our fair share of prairie agates, bubblegum agates, rose quartz, and petrified wood.  All of these are very beautiful in their raw state, but we’ve also purchased a rotary tumbler for polishing our finds. We had our first batch going in the tumbler, and last night was the first “reveal”. It’s only the first “rough” stage of polishing, meant to round off and shape stones, so there are at least couple weeks of more polishing before this first batch is in their final, lustrous form. However, in this first batch we had a major surprise…a simply GORGEOUS Fairburn Agate!

On our last trip, we found a small (1 1/2″), egg-shaped stone with a very irregular outer surface.  It was entirely coal black, without a speck of color, without a trace of banding. However, it was one that we threw in with our first polish batch.  The rough shaping and polishing has started to wear away the black outer layer, revealing the gorgeous Fairburn patterns underneath!  We are going to put the agate through the rough polish stage again to wear away more black and reveal more of the inner Fairburn pattern. We also have another, very similar stone (photo below) that I suspect is also a Fairburn. SUCH FUN!  SUCH EXCITEMENT, to open the polisher for the first time and see the transformed agates and stones.

Fairburn Agate - South Dakota

A full-sized view of the “Eastern Island Head” agate.  None of the colors or banding here was visible until the agate went through the “rough” polishing stage for 8 days. 

Fairburn Agate - South Dakota

Another view of the Fairburn, on the opposite side of photo #1. Similar beautiful banding patterns, with several “eyes”.

Fairburn Agate - South Dakota

The “Back side” of the Easter Island Head agate. It’s quite evident that everywhere the black outer layer is worn down by the polisher, a gorgeous Fairburn pattern is revealed underneath.

Fairburn Agate (likely) - South Dakota

Another agate from the Buffalo Gap National Grasslands, with a similar shape and size. It lacks the overall dark coloring of the “Easter Islands Head’ agate, but you can see a hint of a Fairburn pattern in the pebbly outer shell of this one as well. This one is also headed to the polisher, and my guess is that polishing will also reveal a beautiful Fairburn underneath.

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