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Carving Tips, Tricks and Pics / Re: Richardsons ranch Thunder eggs and rough rock, Oregon.
« on: April 17, 2016, 12:25:42 AM »
some serious sphere making material there.
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I've not found fossils in that spot, but there are fragments around the corner in a shale hill, and lots and lots of fossils within a mile radius. I'll post pictures when I get to some of those spots again. There's calcite everywhere, often mixed with quartz. I have a piece of green quartz from this hill that I found as a kid (it's back in the Washington hoard). It was a hand-sized chunk of solid dark green. Directly across the road and creek is a volcanic neck that upthrust through the shale. I'll get pictures of it soon; kids climbing in the shale there have talked about lavender and green quartz and calcite, (but they also got stuck and had to be rescued; I haven't retraced their steps yet.) This particular hill is spotted with big basalt chunks but they arrived via a botched dynamite operation back in the 80s and are not exactly indicative of this hill's geology. I've vinegar'd some rock from here before, mostly just to get the seepwater residue off it, but haven't used it for mineral identification before. I'll look into that, thanks for the tip!