It is January 25, 2026, slightly above zero in temperature, snow storm in progress. It is a good day to post my newest cut and polished agates and geodes from The Carver Agate Field. This post involves several of the most interesting material. I am including a new photo gallery to accompany this post. The gallery is titled, January 2026 Blizzard Gallery, and it contains a lot more of what I have been up to this winter. Be sure to check it out!

Texas Amethyst Agate World Headquarters Shop Museum and Gallery

Rock #6647

First up: #6647 is a brecciated sagenitic fortification agate geode. Wow, what a mouthful! The greenish blobs in the bottom third of the stone, in the center, are the sagenitic part.

The geode part in the detail above is the red crystal lined cavity. The brecciated part is comprised of the several brown colored shards of lava (rhyolite) broken from the lava matrix in which this geode formed. Pieces from the lava gas bubble walls fell into the gas bubble and were then cemented together by the silica which ultimately filled the gas bubble and made the geode that you are looking at.

What is really cool is that within the triangular shaped brown shard (see photo above), there is a tiny oval shaped agate nodule which formed in the lava before the shard broke off and was cemented into the geode…so we have an agate within an agate geode.

Rock #6636

Photos 6636 (above) and 6637 (further below) are the front and back sides of a “Bullfrog agate” (I named this) cabochon.

More interesting, to me at least, is the pseudomorph/sagenitic cave appearing in part of the stone (photo 6636 enlarged above) on the lower right hand corner to the right of the crack.

Though it appears in this photo that there is actually a cave or part of the stone missing…none of the stone is missing. This is an optical illusion.

Rock #6637

Photo 6637 is the other side of the cabochon. Note the yellow sagenitic cluster above the several red/white bands and also note the brown/black sagenitic formation in the white rind of the stone. This white rind is the identifying feature of Bullfrog Agates and creates a contrast which I think makes them spectacularly beautiful. In my opinion, the Bullfrog Agate is the most intricate, interesting and beautiful agate of all the agates found on The Carver Agate Field.

These intricate patterns are further illustrated in photos 6618 and 6622 below, which are the front and back sides of another Bullfrog Agate cab which I recently cut and polished.

Rock #6618

Rock #6618 Enlarged

Rock #6622

I have included photo 6663 below as further illustration of the exceedingly colorful and varied plume agates which are often found in Bullfrog Agate.

Rock #6663

Rock #6663 Enlarged

Lastly, here are photos 6608 and 6653. Both are interesting, cool and beautiful specimens that are completely dissimilar.

Rock #6608

Rock #6653

I hope you enjoy seeing these amazing rocks as much as I enjoy cutting them. Visit the new photo gallery, the January 2026 Blizzard Gallery, which includes many more stones I have cut and polished this winter!