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.