This is from a unconfirmed impact site. I personally Blaze Wharton discovered this was a impact site. In 2021 all the material speaks for itself. The deep black melted limestone is hard to find. It has been melted to pure Chalcedony agate. The inside is super heated limestone. It has great flight striations on areas of the crust. This is one of the first few pieces we are letting go. A great piece of the Cosmo's. This would make a great display piece or research item. We have a 10 day return policy if you are not happy in any way or item is not as claimed or expected.

Type: Impactite

Size: 70 mm. X 45mm. X 41 mm.

Weight: 137 grams.

Origin: Eldorado Bar, Helena, Montana.