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More Geologic Goodies – Buffalo Gap National Grasslands

OK, so the gorgeous yellow-orange Fairburn was the highlight of my rockhounding trip this weekend, but it certainly wasn’t the only “find”.  Here’s a selection of some of the other agates, jaspers, etc.  What amazes me about this location on the Buffalo Gap National Grasslands is the seeming infinite variety of what you can find, all within one very small area. All of these were collected within a one-square mile area.

Prairie Agates - South Dakota

A collection of Prairie Agates, something you find relatively often on the Buffalo Gap National Grasslands, but they’re so pretty and so variable that I can’t help but collect more.

Agate/Jasper - Buffalo Gap National Grasslands

This one was SO striking when I saw it lying there that I couldn’t help but collect it. I admit however that I have no idea what this is…any ideas?

Prairie Agate - Buffalo Gap National Grasslands

A gorgeous prairie agate (or what I’d call a prairie agate), with some very intricate banding and patterns.  The green is a bit of lichen I have yet to clean off. 

Bubblegum Agates - South Dakota

Bubblegum agates! I actually have a somewhat difficult time finding many of these, but always pick them up when I do. Of all the stones out here, it’s the bubblegum agates that really “shine” (ha) when I put them through the polisher. Once you start to wear down those nodules, there are often some truly incredible patterns and banding underneath.

Banded Agate - South Dakota

Stones like this make me want to take a hammer and break every stone open. I don’t have a rock saw or anything, but I imagine there are SO many hidden treasures like this on the Buffalo Gap National Grasslands, pieces where you don’t see the beauty unless you slice them open.

Prairie Agate - Buffalo Gap National Grasslands

A prairie agate. The orangish ones are probably the most common, but there are some pretty red tones in many of them as well.

Agate - South Dakota

While many agates have the banding patterns shown on this post, there are some other cool patterns you find as well. Love the pink “druzy” crystalline area that forms the heart of this agate, with some banding and other patterns around it.

Jasper - Buffalo Gap National Grasslands

A jasper, of which there are many on the grasslands.

Miscellaneous Agate - Buffalo Gap National Grasslands

One more agate (at least that’s what I’d call it), with some interesting fine banding.

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

Updated “South Dakota Rockhound” pages

Bubblegum Agate - South Dakota Rockhound

An incredible, polished bubblegum agate from the Buffalo Gap National Grasslands of South Dakota. An amazing little piece, it was a small, black, featureless lump when we found it, but we’ve found that these little dark bubblegums often have some GORGEOUS patterns that reveal themselves once you polish them for a while. There are other examples on the updated pages on South Dakota Rockhound pages.

I’m 51 years old. I already have so many unprocessed bird photos sitting on my hard drive that I doubt there are enough years left in my life to process them all, and add them to my website or blog. It’s easy to take photos!  It’s FUN to take photos!  It’s much less fun to process them all and DO something with said photos.

And now my son and I have a new hobby that we started last summer…rockhounding in the incredible areas near the Badlands of South Dakota. We certainly have found some beautiful pieces of agate, jasper, petrified wood, and other stones over the last year.  The wonderful and variable patterns and colors just BEG a photographer to get out the camera…I can’t resist!  As if I needed more unprocessed photos cluttering up my hard drive, now I’m also taking macro photos and photos of rocks and minerals, many of which will likely never see the light of day.

I’m trying! I’m trying to be more selective in what I shoot, both for birds and for rocks!  And in an effort to at least get some photos of my favorite pieces out on my website, I have just recently updated the “South Dakota Rockhound” section of my website.  Click on the following for photos of some of the pieces we’ve found over the last year. There are also some cool macro photos of other mineral assets we’ve acquired over the past year (for now, just a batch of Mexican Crazy Lace agate).  As with the birding pages on my website, I’ll try to continually update the Rockhound site as I have time!  For now, enjoy the new photos.

South Dakota Rockhound (Click here)

Mexican Crazy Lace Agate - Macro Photograph

A macro photo of one of the pieces of Mexican Crazy Lace (agate) we bought recently.

“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!”

 

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