Wilhelm Posted April 21, 2018 Share Posted April 21, 2018 I'm suspicious of the colour changes, but maybe someone who knows about fake trilobites could weigh in. 1 Link to comment Share on other sites More sharing options...
Fossildude19 Posted April 21, 2018 Share Posted April 21, 2018 It's real. No need to be suspicious. Color changes are natural depending on what minerals leached into the rock during the fossilization process. 3 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...
ynot Posted April 21, 2018 Share Posted April 21, 2018 The color change is do to oxidation/exposure (brown.) and lost shell (light gray areas). This looks 100% natural. 3 Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
Fitch1979 Posted April 21, 2018 Share Posted April 21, 2018 100% real Link to comment Share on other sites More sharing options...
Wilhelm Posted April 22, 2018 Author Share Posted April 22, 2018 On 21/04/2018 at 3:00 PM, Fossildude19 said: It's real. No need to be suspicious. Color changes are natural depending on what minerals leached into the rock during the fossilization process. On 21/04/2018 at 3:01 PM, ynot said: The color change is do to oxidation/exposure (brown.) and lost shell (light gray areas). This looks 100% natural. What about these 'bubbles'? I heard they were cause for concern in trilobite fossils. Link to comment Share on other sites More sharing options...
Fossildude19 Posted April 22, 2018 Share Posted April 22, 2018 6 minutes ago, Wilhelm said: What about these 'bubbles'? I heard they were cause for concern in trilobite fossils. Those aren't bubbles. Those are areas where the trilobite's shell (integument) has worn or fallen away. Perfectly real. Air bubbles look like the ones on this poor trilobite cast: 2 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...
Wilhelm Posted April 22, 2018 Author Share Posted April 22, 2018 18 minutes ago, Fossildude19 said: Those aren't bubbles. Those are areas where the trilobite's shell (integument) has worn or fallen away. Perfectly real. Air bubbles look like the ones on this poor trilobite cast: Based on that picture I'd actually say they look very similar. To clarify, I'm looking at the tiny holes not the missing armour sections. Link to comment Share on other sites More sharing options...
Fossildude19 Posted April 22, 2018 Share Posted April 22, 2018 If you are talking about the tiny black dots on the trilobite in question, it looks like that may be texture of the matrix. I don't believe that it is a fake, (and, you did ask for our opinions) but, ultimately you need to trust your own judgement on purchases like this. 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...
DevonianDigger Posted April 22, 2018 Share Posted April 22, 2018 Totally real. The coloration is left on the matrix where the fossil is missing. I see nothing questionable about this. Jay A. Wollin Lead Fossil Educator - Penn Dixie Fossil Park and Nature Reserve Hamburg, New York, USA Link to comment Share on other sites More sharing options...
piranha Posted April 22, 2018 Share Posted April 22, 2018 1 hour ago, Wilhelm said: Based on that picture I'd actually say they look very similar. To clarify, I'm looking at the tiny holes not the missing armour sections. The trilobite is 100% authentic. There is no rationale to fabricate a common trilobite that is already missing the free cheeks and a significant amount of shell. 3 Link to comment Share on other sites More sharing options...
aeon.rocks Posted April 23, 2018 Share Posted April 23, 2018 Quote Based on that picture I'd actually say they look very similar. To clarify, I'm looking at the tiny holes not the missing armour sections. Not even close to similar. Air bubble holes are air bubble holes... If you'll keep collecting trilobites you'll learn and get to see more of similar ornamentation like tiny granulation, pustulation, tuberculation, pores and color pattern changes due to diagenesis and different mineralisation or even structures of pigment preservation (melanophores i.e.), matrix texture etc... And of curse airscribe hits. All these mentioned "hole looking ornamentation things" are tiny details you will find only on real good preped and preserved trilobites. And are very different from air bubbles (random size, random shape and random scattered holes in plastic epoxy from air), but you need a closer look. Example below devonian bug Hypsipariops - zoom in, see the holes? Completely different bug as on photo above, but just to show not every hole or a "bubble like thing" is a sign of worry... 100% natural, holes are pores. 4 Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted April 24, 2018 Share Posted April 24, 2018 It's not perfect, but it's real. I rather like it. Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now