Yes, this is Montana Agate! Somewhere in time, this example developed a hole which filled up with agatized material, like a thunder egg. I've never seen this happen in Montana Agate before, but here it is! A real pretty cabochon!

31.5mm x 25mm x 5.5mm.   Weight: 26.45 carats.

Every one of my cabochons is custom cut to take the best advantage of the particular slab from which it is fashioned. Colors may vary somewhat from what is pictured due to differences in computer monitors.

Click the image on the right to see the cabochon super-sized...

MON031