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A few year ago(3?) A very generous forum member Gift me a self- collected Thunder egg. That member was our very own @Brett Breakin' Rocks. I have been meaning to have it sliced open ever since I received it. The plan was to cut it, using my local club's rock saw. Unfortunately i am a forgetful guy. Every time the club had the saw set up for use, i would forget and leave it home. Eventually i just told myself that as long as i have it uncut, i will have a gift to open some day. So, it sat on a shelf for a long time............until today! Today my local club held their annual club picnic. It has become a tradition that one of our members brings 2 rock saws. One is used for cutting geodes, the other for cutting slabs of stone to be made into jewelry. So I remembered my thunder egg and got it sliced. My egg was filled with a nice blue color agate it is lighter around the outer edges, and gets darker towards the middle. I took 2 pics, one shows how it looks dry, the other, how it looks wet. Unfortunately the pics do not show the difference very well. But I plan on getting one half polished to bring out the color, the other half i may have one of my gem club members turn it into some sort of jewelry. Anyways, Thank-you once again Brett! You are a good man! Pic#1- dry Pic#2-wet

Found this one near Florida Mountains, more specifically Round Hound State Park, Deming New Mexico. I did some cutting and polishing on one end so it that it could be displayed more easily on my desk but have not really researched it so any help would be great.

Hi guys, avid rock hunter here, brought home this “thunder egg” from crater of diamonds in Arkansas a few years ago. I finally got a slab saw and it’s not what I expected! It’s semi transparent in spots and some druzy inclusions. Some areas seem a little oolitic? Could it be an “agatized” fossil of some sort?