Trig Posted July 6, 2016 Share Posted July 6, 2016 What Are The Lighter Splotchy Patches...???...Is That A Form Or Type Of Enamel Loss...??? Thanks...Trig Link to comment Share on other sites More sharing options...
jcbshark Posted July 6, 2016 Share Posted July 6, 2016 I'm not sure what causes it but I rub a little baby oil or veg oil on the enamel on ones like that and it helps even most of them out: ) 3 Every once in a great while it's not just a big rock down there! Link to comment Share on other sites More sharing options...
sixgill pete Posted July 6, 2016 Share Posted July 6, 2016 Curious, was this tooth found in a creek or river setting? I have a few from Greens Mill Run, black teeth like yours that have light spots. Bulldozers and dirt Bulldozers and dirt behind the trailer, my desert Them red clay piles are heaven on earth I get my rocks off, bulldozers and dirt Patterson Hood; Drive-By Truckers May 2016 May 2012 Aug 2013, May 2016, Apr 2020 Oct 2022 Link to comment Share on other sites More sharing options...
mrieder79 Posted July 6, 2016 Share Posted July 6, 2016 It almost looks like a type of etching. I don't see this on teeth that I find, so I'm not familiar with it. Are there any sources of acid in the sediment where it was found? 1 Luck is the most important skill of a fossil diver. Link to comment Share on other sites More sharing options...
Trig Posted July 6, 2016 Author Share Posted July 6, 2016 Curious, was this tooth found in a creek or river setting? I have a few from Greens Mill Run, black teeth like yours that have light spots. It almost looks like a type of etching. I don't see this on teeth that I find, so I'm not familiar with it. Are there any sources of acid in the sediment where it was found? I can't say...I don't own it...Just looking around...Trig Link to comment Share on other sites More sharing options...
caldigger Posted July 6, 2016 Share Posted July 6, 2016 I'm not sure what causes it but I rub a little baby oil or veg oil on the enamel on ones like that and it helps even most of them out: ) I would stick with the mineral oil. Vegetable oil can go rancid over time and add an unpleasant smell to the tooth. 1 Link to comment Share on other sites More sharing options...
ynot Posted July 6, 2016 Share Posted July 6, 2016 I see this type of "etching" in some of the teeth from Sharktooth hill and believe they are caused by contact with roots. Tony 3 Link to comment Share on other sites More sharing options...
iEnderMan06 Posted July 6, 2016 Share Posted July 6, 2016 What Are The Lighter Splotchy Patches...???...Is That A Form Or Type Of Enamel Loss...??? Thanks...Trig 2.jpg 1.jpg I believe this is Scarring... Link to comment Share on other sites More sharing options...
Shellseeker Posted July 6, 2016 Share Posted July 6, 2016 I see this type of "etching" in some of the teeth from Sharktooth hill and believe they are caused by contact with roots. Tony Bingo, Tony When I found this one a couple of years back, we had a discussion about the Meg laying in sand/soil in contact with roots at some point in the fossilization process. Sounded good at the time... 1 The White Queen ".... in her youth she could believe "six impossible things before breakfast" Link to comment Share on other sites More sharing options...
Trig Posted July 8, 2016 Author Share Posted July 8, 2016 (edited) Thanks All...Chemical "Etching" seems to be a likely suspect...and it seems it could be either acid or alkaline...If I understand it...??? I saw a reference to the word / term "Spangling" with regards to galvanizing...where the metal does have that "Splotchy" look...??? And...My knowledge of galvanization and or metals chemistry in general is just about zero...!!! Trig Edited July 8, 2016 by Trig Link to comment Share on other sites More sharing options...
New Members Fen Posted July 9, 2016 New Members Share Posted July 9, 2016 I actually have a small Bone Valley Hemipristis tooth with a ton of this patterning, and my other Bone Valley meg tooth has a small splotch or two. Whatever it is, I think it can look gorgeous. There's another one for sale right now that's blue with tan splotching. Link to comment Share on other sites More sharing options...
PaleoRon Posted July 10, 2016 Share Posted July 10, 2016 When plant roots come into contact with shark tooth enamel, under the right conditions, they can actually start to strip minerals from the enamel forming what is often called "Lightning Lines" due to the branching patterns left by the roots. The "splotching" effect is caused by chemical erosion of the enamel on teeth that were in water permeable layers that contain no shells. In layers with shells the shells neutralize the acidic groundwater, until they are all dissolved. I have never found an etched tooth in a clay matrix, with or without shells. 4 Link to comment Share on other sites More sharing options...
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