crabfossilsteve Posted December 27, 2018 Share Posted December 27, 2018 That turned out very cool. the color and prep are great. 1 Link to comment Share on other sites More sharing options...
FossilsAnonymous Posted December 27, 2018 Share Posted December 27, 2018 @Haravex just magnificent. I am very jealous of your skills and those trilobites. Ahh, if only I prepped like that! All I have to do is use a toothbrush and toothpick to clean off Ecphora. On The Hunt For The Trophy Otodus! Link to comment Share on other sites More sharing options...
Ludwigia Posted December 27, 2018 Share Posted December 27, 2018 Excellent job! If I were you, I'd still cut a base and smooth down the matrix. A real work of art! Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Haravex Posted January 28, 2019 Author Share Posted January 28, 2019 So working on a vertebrae from the jurassic of Morocco possibly stegosauird so keeping a close eye on the level of detail. In at about 7 hours so far. Link to comment Share on other sites More sharing options...
Haravex Posted January 28, 2019 Author Share Posted January 28, 2019 Link to comment Share on other sites More sharing options...
Ptychodus04 Posted January 28, 2019 Share Posted January 28, 2019 Nice! 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...
Haravex Posted January 28, 2019 Author Share Posted January 28, 2019 Taking a break from this working on a plesio vert from akoubou formation. 3 Link to comment Share on other sites More sharing options...
Haravex Posted January 29, 2019 Author Share Posted January 29, 2019 Had a little more time today so decided to see how well the air abrasion worked on this vert and very well is the answer. The attached vertebrae image from a journal document is of a stegosaurus I feel there are some significant similarities. 5 Link to comment Share on other sites More sharing options...
Haravex Posted January 29, 2019 Author Share Posted January 29, 2019 In to 8 hours now, and as much as can be done with just bicarb alone so will need to make a 50 50 mix dolomite bicarb up also with the large jurassic vert any suggestions what to use for crack fill? @Ptychodus04 2 Link to comment Share on other sites More sharing options...
Ptychodus04 Posted January 29, 2019 Share Posted January 29, 2019 25 minutes ago, Haravex said: In to 8 hours now, and as much as can be done with just bicarb alone so will need to make a 50 50 mix dolomite bicarb up also with the large jurassic vert any suggestions what to use for crack fill? @Ptychodus04 Matt, this is looking really good. Great progress. I like Apoxie Sculpt for crack filling. It can be bought in a variety of colors and it also accepts powdered cement dyes well for a very customizable palette. I typically use black, white, and dark brown to make a filler that is close enough to the bone color to look good but different enough to be seen. It is easy to use and works/tools just like natural clay. I mix part A until I get the color I want, then add an equal amount of part B to begin the chemical reaction. Working time is effectively 2 hours at normal room temps (less if warm and more if rather cold). 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...
Haravex Posted March 8, 2019 Author Share Posted March 8, 2019 Small update sorry I'm bad at doing these for anyone wondering how hard this is to prep think goulmima reptile vertbrae but harder the constant fight against stabilizing bone and getting the matrix to come away clean is a nightmare not to mention the calcite vein's. Link to comment Share on other sites More sharing options...
Haravex Posted March 8, 2019 Author Share Posted March 8, 2019 Last 3 Link to comment Share on other sites More sharing options...
Haravex Posted March 12, 2019 Author Share Posted March 12, 2019 Another small update the processes are starting to take shape also spent 30 minutes on this little ammonite I dug from akoubou formation 3 Link to comment Share on other sites More sharing options...
Ptychodus04 Posted March 12, 2019 Share Posted March 12, 2019 @Haravex that's a nice little ammonite. 1 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...
Tidgy's Dad Posted March 12, 2019 Share Posted March 12, 2019 Love the little ammonite. Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
Haravex Posted March 15, 2019 Author Share Posted March 15, 2019 Ok so need some advice after a mild panic attack and some rather blue words this morning posting here this happened while I was prepping it would seem this vertbrae also has half a tree growing in it what would be the next course of action I have some ideas but would be great to get the professionals thoughts and suggestions. Thanks Matt @Ptychodus04 @RJB Link to comment Share on other sites More sharing options...
Ptychodus04 Posted March 15, 2019 Share Posted March 15, 2019 Matt, I would scribe off the roots that grew through it and then glue it back together. Typically, toots will push through a crack and widen it and allow matrix to fill in but leave the two halves mostly intact. Scribe all that off and see how well the two pieces fit together. You may need a high viscosity glue or an epoxy putty to make it fit if the damage is bad enough. 2 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...
RJB Posted March 16, 2019 Share Posted March 16, 2019 What Ptychodus04 said. RB Link to comment Share on other sites More sharing options...
Haravex Posted March 16, 2019 Author Share Posted March 16, 2019 On 15/03/2019 at 1:32 PM, Ptychodus04 said: Matt, I would scribe off the roots that grew through it and then glue it back together. Typically, toots will push through a crack and widen it and allow matrix to fill in but leave the two halves mostly intact. Scribe all that off and see how well the two pieces fit together. You may need a high viscosity glue or an epoxy putty to make it fit if the damage is bad enough. Ok I've done the first part a sharp scalpel blade did the job well enough the pieces obviously now fit back together better than before but I've taken this chance before gluing them back together to prep the very top here is the progress yes I know it's slow but want this to be as good as possible. 2 Link to comment Share on other sites More sharing options...
Ptychodus04 Posted March 16, 2019 Share Posted March 16, 2019 Much better fit! Slow is good. 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...
Haravex Posted March 18, 2019 Author Share Posted March 18, 2019 Lighting is bad in this picture so it doesn't look like I've done much but over half the matrix from the top of the processes has been removed. Calcite cracks and gypsum are a nightmare. Link to comment Share on other sites More sharing options...
Haravex Posted April 11, 2019 Author Share Posted April 11, 2019 Carrying on from one gypsum nightmare this sauropod chevron was literally completely covered in gypsum and has been some hard work but just at the end of prepping sadly the surface of the bone has suffered some erosion prior to fossilization. Forgot to mention it is almost finished not totally yet but around 80 to 85 percent done Link to comment Share on other sites More sharing options...
Haravex Posted April 11, 2019 Author Share Posted April 11, 2019 Here it is when I had just started and close up of the gypsum. 1 Link to comment Share on other sites More sharing options...
Ptychodus04 Posted April 15, 2019 Share Posted April 15, 2019 Looking Good Matt. Gypsum is a real nightmare to prep. It tends to grow into the bone since it is a precipitate. Nasty nasty stuff. I don't envy the time you've spent with it. 1 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...
Haravex Posted May 7, 2019 Author Share Posted May 7, 2019 Had to take some fresh pictures of the now confirmed stegosaur vertebrae so here is the progress coming towards the end of scribe work and then on to air abrasion (hopefully ) 2 Link to comment Share on other sites More sharing options...
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