hndmarshall Posted September 22, 2018 Share Posted September 22, 2018 this is interesting fancy poo or a plant?..crystal or what? Link to comment Share on other sites More sharing options...
Bobby Rico Posted September 22, 2018 Share Posted September 22, 2018 “Fancy Poo” that is the first time I have heard them words combined. Link to comment Share on other sites More sharing options...
Wolf89 Posted September 22, 2018 Share Posted September 22, 2018 You should mention where it was found Link to comment Share on other sites More sharing options...
hndmarshall Posted September 22, 2018 Author Share Posted September 22, 2018 5 minutes ago, Wolf89 said: You should mention where it was found I dont really know location unknown my friend picked it up in a box of rocks at a garage sale Link to comment Share on other sites More sharing options...
GeschWhat Posted September 22, 2018 Share Posted September 22, 2018 Not fancy poo... Lori www.areallycrappystory.com/fossils www.facebook.com/fossilpoo Link to comment Share on other sites More sharing options...
Auspex Posted September 22, 2018 Share Posted September 22, 2018 I think it may be a sandstone concretion. They can be pretty amazing: Yours has a bilateral symmetry tendency, which would be a characteristic that might narrow down the type of accreting mineral involved. "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...
FranzBernhard Posted September 22, 2018 Share Posted September 22, 2018 No, not poo at all. It has some similarities of a sandstone concretion (as already pointed out) but also some similarities of a worn desert rose (both are technically speaking not so different). I think a worn ikaite-pseudomorph is not a possibility. Franz Bernhard Link to comment Share on other sites More sharing options...
hndmarshall Posted September 22, 2018 Author Share Posted September 22, 2018 45 minutes ago, Auspex said: I think it may be a sandstone concretion. They can be pretty amazing: Yours has a bilateral symmetry tendency, which would be a characteristic that might narrow down the type of accreting mineral involved. I do believe you are correct! look what i found... it says calcite. Link to comment Share on other sites More sharing options...
fossilnut Posted September 22, 2018 Share Posted September 22, 2018 @hindmarshall has nailed it. Calcite crystals replaced with sand but retaining the crystal form. Nice in there own "gritty" way. @Auspex's sandstone concretion is really cool too. Poo on the original idea. The calcite crystals (dog tooth spar) precipitate out of ground water and cement the loose quartz sand grains into the crystal's lattice structure. An evaporate. Occurrences in South Dakota are mentioned. Link to comment Share on other sites More sharing options...
Ludwigia Posted September 22, 2018 Share Posted September 22, 2018 A cool and relatively uncommon sample at any rate. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
abyssunder Posted September 22, 2018 Share Posted September 22, 2018 Pretty nice! They are called "sand calcite". Take a look here . " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
DPS Ammonite Posted September 22, 2018 Share Posted September 22, 2018 6 minutes ago, fossilnut said: @hindmarshall has nailed it. Calcite crystals replaced with sand but retaining the crystal form. Nice in there own "gritty" way. Auspex's sandstone concretion is really cool too. Poo on the original idea. The calcite has grown in sand forming crystals. The crystals contain inclusions of sand. The sand has not replaced the crysyals. My goal is to leave no stone or fossil unturned. See my Arizona Paleontology Guide link The best single resource for Arizona paleontology anywhere. Link to comment Share on other sites More sharing options...
abyssunder Posted September 22, 2018 Share Posted September 22, 2018 What John said is correct. For more details you can check this document. " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
Darktooth Posted September 22, 2018 Share Posted September 22, 2018 Fancy Poo? I think we have a new term of endearment for @GeschWhat I like Trilo-butts and I cannot lie. Link to comment Share on other sites More sharing options...
FranzBernhard Posted September 23, 2018 Share Posted September 23, 2018 Already something learned today! Thanks to all! Franz Bernhard Link to comment Share on other sites More sharing options...
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