chele Posted June 4, 2011 Share Posted June 4, 2011 I found this in a shale bluff where I have been finding a lot of leaves. It does not appear to be a leaf. It has a beautiful golden hue to it, and a long stem. The golden part is 4 cm by 1 cm and the stem is 8 cm long. Any ideas? Chelebele Link to comment Share on other sites More sharing options...
Fossildude19 Posted June 4, 2011 Share Posted June 4, 2011 Pyrite? Looks like some form of mineralization, rather than fossil. But I'm not a geologist, by any means. Don't take my word for it. Regards, Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
piranha Posted June 4, 2011 Share Posted June 4, 2011 It appears to be beautifully pyritized cone structure. Wow Chele- congrats again!! Link to comment Share on other sites More sharing options...
Auspex Posted June 4, 2011 Share Posted June 4, 2011 I have to go with a marcasite crystal growth within a crack in the rock. "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
Bill Posted June 4, 2011 Share Posted June 4, 2011 (edited) Definitely Marcasite/Pyrite, but I go with M/P replacement of, or growth on, a cone/leaf at the end of a stalk. Edited June 4, 2011 by Bill KOF, Bill. Welcome to the forum, all new members www.ukfossils check it out. Link to comment Share on other sites More sharing options...
flyguy784 Posted June 4, 2011 Share Posted June 4, 2011 I agree with one thing, it's beautiful. Really beautiful. Shame its not 4 inches across. Link to comment Share on other sites More sharing options...
Ludwigia Posted June 4, 2011 Share Posted June 4, 2011 I've found lots of pyrite/marcasite concretions in my hunting career and that's definitely a partially oxidized one which gives it the lovely rainbow colors. However, I don't think it's necessarily "replaced" anything like leaf or cone, although it does give that impression at first glance. What we see here is the typical 3 dimensional crystal growth form radiating from a central kernel starting point, and that could have been anything small and organic. All the best, Roger Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
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