oilshale Posted October 27, 2015 Share Posted October 27, 2015 Nice overview about preparation and conservation techniques from the Florida Museum of Natural History. http://www.flmnh.ufl.edu/vertpaleo/amateur-collector/preparation 4 Be not ashamed of mistakes and thus make them crimes (Confucius, 551 BC - 479 BC). Link to comment Share on other sites More sharing options...
Mike Pocock Posted October 27, 2015 Share Posted October 27, 2015 Hi, Just finished reading the article, good solid info thanks for the post, I have printed off a copy for reference. Regards Mike Link to comment Share on other sites More sharing options...
ZiggieCie Posted October 27, 2015 Share Posted October 27, 2015 I will be reading it, THX. Link to comment Share on other sites More sharing options...
Fossildude19 Posted October 27, 2015 Share Posted October 27, 2015 Thank you for posting the link Thomas. Good information in there. 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...
jpc Posted October 27, 2015 Share Posted October 27, 2015 Good stuff, but fairly dated. It mentions glyptal as a good consolidant. No professional uses glyptal anymore (only our own RB does). That went out 20 years ago. It also make no mention of the primary air scribe maker for us...PaleoTools. (Also they spell 'Aro' incorrectly, but I can let that slide). Doesn't mention Comco as a maker of air abrasive units, but does mention SS White, which I don't think makes a paleo sized unit anymore. Good general info, though. But keep in mind it looks to melike it dates to the 80's. Link to comment Share on other sites More sharing options...
amour 25 Posted October 28, 2015 Share Posted October 28, 2015 Nice, put in favorites is there a PDF, might of missed it. Jeff Link to comment Share on other sites More sharing options...
Ptychodus04 Posted October 29, 2015 Share Posted October 29, 2015 Good general info, though. But keep in mind it looks to melike it dates to the 80's. 1st paragraph says it was written in the late 90's and periodically updated. I think the update period probably ended in the late 90's as well. A good general overview of fossil preparation and preservation. It's a good place to whet your appetite for preparation. Or, a starting place to run away. Regards, Kris Global Paleo Services, LLC https://globalpaleoservices.com http://instagram.com/globalpaleoservices http://instagram.com/kris.howe Link to comment Share on other sites More sharing options...
Harry Pristis Posted October 29, 2015 Share Posted October 29, 2015 I agree, this does provide a general overview for preppers. I'm a bit skeptical about the advice for dealing with 'hemititic' deposits on Florida river fossils. I don't think that I'll ever own any thioglycolic acid or calcium orthophosphate for removing iron oxide (goethite) deposits from Florida river fossils. I've used mild solutions of oxalic acid for that purpose. Oxalic acid is easily available and relatively inexpensive to get the results that the FSM student describes . . . there's always the residue of powdery crust that must be removed by hand. I've managed to eliminate the acid treatment by employing my air abrasive machine with 50-micron glass beads. I have not had a problem with damage to the fossils. (I'm certain that you can 'burn' anything, even with glass beads, if you are careless.) What do other Florida collectors do? 1 http://pristis.wix.com/the-demijohn-page What seest thou else In the dark backward and abysm of time? ---Shakespeare, The Tempest Link to comment Share on other sites More sharing options...
Ludwigia Posted October 29, 2015 Share Posted October 29, 2015 Thanks for the tip, Thomas! Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
oilshale Posted October 30, 2015 Author Share Posted October 30, 2015 (edited) Oxalic acid works well if there is little or no calcium carbonate in the substrate and the fossil is quite stable against dilute acid. I agree, working with thioglycolic acid can be a mess and should be avoided if you can. But I found the Waller method - even so a bit more complicated - very usefull. Especially if you have to deal with carbonate substrates and acid sensitive bones. Sometimes fossils from the Santana formation are heavily stained and very dark - they are easy to clean and get brighter with this solution. Here are two links how to use this method: http://www.pegworkshop.com/extras/waller/waller1.html http://www.jstor.org/stable/4523244?seq=1#page_scan_tab_contents Sometimes phospates are added to this solution as a buffer to further protect the (calcium phosphate containing) bones. By the way - this method is also a very good choice to clean acid sensitive minerals. Thomas PS: The Waller solution will generate hydrogen sulfide - a poisonous gas smelling after rotten eggs! Avoid exposure and work with extreme care preferable under a lab hood or outdoors. Edited October 30, 2015 by oilshale Be not ashamed of mistakes and thus make them crimes (Confucius, 551 BC - 479 BC). Link to comment Share on other sites More sharing options...
oilshale Posted October 30, 2015 Author Share Posted October 30, 2015 Here is another link I found very useful. It's about prep techniques as part of the PaleoPortal of the American Museum of Natural History: http://preparation.paleo.amnh.org/11/preparation Have fun Thomas Be not ashamed of mistakes and thus make them crimes (Confucius, 551 BC - 479 BC). Link to comment Share on other sites More sharing options...
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