posted on Jun, 28 2014 @ 07:35 PM
a reply to: Treespeaker
To me, it looks like one of the following:
1. Inner part of a rock that had a black crust. The greenish mineral is most likely quartz, and my guess would be that at some point, this rock was in
a fast moving current somewhere. The black parts were in the process of eroding out, leaving the harder minerals behind.
2. Conglomerate of some sort - This looks igneous to me, especially with the quartz veins. My second guess would be a bit of water-polished
3. Agate - in the second set of photos (other post), this does have the look of some agates. The Lake Superior ones don't match too much (they have
a distinct look; I found them before), but the snakeskin agate looks to be closer.
If you want, you can send it over this way for analysis (I've got several Mineral halls/Museums in the area, and I'm sure at least one of them could
Also, I know I have seen several similar rocks in one of the deeper-cut creek beds out here. If you want, I can try to get to the area and see if I
can find anything similar; I've been overdue searching that area, as I used to be able to find crinoid stems there.