Wisconsin Fossils
21-Dec-93 08:00:47
Sb: #115409-Wisconsin Fossils
Fm: Syndesis 76004,1763
To: Michael Sternberg 76147,42
Very interesting. I'm very jealous of your tools… I hope to get some
someday. As for dental picks, should I just ask my dentist for any old
worn-out leftovers? And how much will one of these air-powered gizmos cost?
At the uppermost levels of this Topeka hill-cut, I saw a few promising
concretions that reminded me of the ironstone you see from the Mazon Creek
formation. I cracked a few but didn't find anything. It was as if each one
had been shattered by pressure, in place, before, and then a transparent
calcite had flowed between the cracks to re-cement them.
I'd tried a little vinegar to help clean some of the bits of crinoid and shell
I'd found, but it just dissolved what I wanted to save, so these specimens
hadn't been remineralized. Is there a suite of acids I should acquire to assist
in these sort of cleaning operations?
As you might be able to tell from my questions, I've got a lot of them. 🙂 I
think I should search for a paleontology textbook that would describe these
techniques in detail.