Polished Cold Mountain Thunderegg Cut Chunk Lapidary Stone Davis Creek Obsidian Among those included are:

Among those included are:

It makes some really attractive cabochons

Measurements (inches - longest - approx): 4 x 3

but still holds up and is nice and solid

Polished Cold Mountain Thunderegg Cut Chunk Lapidary Stone Davis Creek Obsidian Among those included are:This one has been cut and has a nice polish on one side. Cold Mountain Thundereggs are a really neat form of rhyolite and agate filled thundereggs from Mexico. These often look ugly and unappealing from the outside, but are jaw dropping gorgeous once cut! Unless it is showing a good window, I don't personally recommend buying these in the rough unless you have a saw. But, once these have been cut, its very easy to see why they are so popular among