JohnJ Posted October 4, 2008 Share Posted October 4, 2008 A few years ago, my wife and I pulled our canoe up on a small, Cretaceous gravel bar to eat a snack. As she sat with her feet over the gunnel, I glanced down in the water beside them at a small, algae covered clam. When I picked it up to show her, it seemed oddly heavy. We were both surprised to see that it was a fossil clam! Since then, I've found another whole one and a few more partials. I think they might be some species of Crassatella, but these specimens are camouflaging another secret. The human mind has the ability to believe anything is true. - JJ Link to comment Share on other sites More sharing options...
Roz Posted October 4, 2008 Share Posted October 4, 2008 Since then, I've found another whole one and a few more partials. I think they might be some species of Crassatella, but these specimens are camouflaging another secret. I am curious..what secret? Welcome to the forum! Link to comment Share on other sites More sharing options...
Uncle Siphuncle Posted October 4, 2008 Share Posted October 4, 2008 Show 'em Johnny! Show 'em! Then show 'em my favorite. Grüße, Daniel A. Wöhr aus Südtexas "To the motivated go the spoils." Link to comment Share on other sites More sharing options...
Megaselachus13 Posted October 4, 2008 Share Posted October 4, 2008 In what material are them fossilized?. At first glance seem agate, opal or some type of silica mineralized. Although it can also be calcite that would be more common. Greetings Link to comment Share on other sites More sharing options...
Guest solius symbiosus Posted October 5, 2008 Share Posted October 5, 2008 I"ll guess-since you said heavy, are they barite or cerrusite? Link to comment Share on other sites More sharing options...
Guest bmorefossil Posted October 5, 2008 Share Posted October 5, 2008 let me guess 24k. gold!!!, no really whats the secret? Link to comment Share on other sites More sharing options...
JohnJ Posted October 5, 2008 Author Share Posted October 5, 2008 It revealed the secret to me in the sun. Later, when I cleaned away all the algae, I used a laser pen to illuminate the full beauty. They are probably formed of chalcedony... (sorry the autofocus doesn't love the laser) Not too long ago, my wife found our best example of this type mineral replacement, a jewel of a nautiloid! (of course this is Dan's favorite) Just a few common jewels that we enjoy. The human mind has the ability to believe anything is true. - JJ Link to comment Share on other sites More sharing options...
Guest solius symbiosus Posted October 5, 2008 Share Posted October 5, 2008 Oooh, pretty! Link to comment Share on other sites More sharing options...
Guest bmorefossil Posted October 5, 2008 Share Posted October 5, 2008 wow would you look at them!!! i wish there were megs like that, then i could have a meg night light Link to comment Share on other sites More sharing options...
Mike Owens Posted October 5, 2008 Share Posted October 5, 2008 NEAT O! :shades: -----"Your Texas Connection!"------ Fossils: Windows to the past Link to comment Share on other sites More sharing options...
Megaselachus13 Posted October 5, 2008 Share Posted October 5, 2008 Very nice specimens, the nautilus is a jewel. Perhaps luminescence occurs when exposed to ultraviolet light, some types of opal react, emitting a greenish tone. The truth is that some shark teeth fosfatized react to the ultraviolet lamp so exaggerated, is a phenomenon that I have seen in specimens from Lee Creek, Chile and Portugal. Chilean ones remain lit few moments when you turn off the lamp, is a curious phenomenon and the first time I saw it I thought it was very spectacular. But we must be careful not to look in the light of the lamp (only to illuminate the goal) might occur if the exposure is prolonged eye injuries. The downside is that it is difficult to photograph, because it dominates the tone purple and eats the tone of the luminescence emitted by the specimen. Greetings. Link to comment Share on other sites More sharing options...
Roz Posted October 5, 2008 Share Posted October 5, 2008 A double treat... Those are really beautiful. I take it chalcedony must be really heavy then. Welcome to the forum! Link to comment Share on other sites More sharing options...
RJB Posted October 5, 2008 Share Posted October 5, 2008 I must say those are QUITE NICE! Wow. RB Link to comment Share on other sites More sharing options...
Guest bmorefossil Posted October 5, 2008 Share Posted October 5, 2008 Very nice specimens, the nautilus is a jewel. Perhaps luminescence occurs when exposed to ultraviolet light, some types of opal react, emitting a greenish tone. The truth is that some shark teeth fosfatized react to the ultraviolet lamp so exaggerated, is a phenomenon that I have seen in specimens from Lee Creek, Chile and Portugal. Chilean ones remain lit few moments when you turn off the lamp, is a curious phenomenon and the first time I saw it I thought it was very spectacular. But we must be careful not to look in the light of the lamp (only to illuminate the goal) might occur if the exposure is prolonged eye injuries. The downside is that it is difficult to photograph, because it dominates the tone purple and eats the tone of the luminescence emitted by the specimen. Greetings. your kidding me!!! have you ever tried teeth from maryland? Where can i get myself an ultraviolet lamp? Link to comment Share on other sites More sharing options...
tracer Posted October 5, 2008 Share Posted October 5, 2008 Link to comment Share on other sites More sharing options...
Auspex Posted October 5, 2008 Share Posted October 5, 2008 ...then i could have a meg night light To me, this is a defining statement of what it's like to be bmorefossil "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...
Megaselachus13 Posted October 5, 2008 Share Posted October 5, 2008 I couldn't even try it with teeth of Maryland, I don't have any of that state in the collection. But I suppose that those that are very clear tone likely to react favorably to the lamp. As to where to get it, I have difficulty in knowing what kind of establishments are sold in U.S.A., here I could buy in a supermarket one and other in a lamps shop. Often used in shops to verify the authenticity of the paper money (The mark comes with a few segments of paint that reacts to light). Link to comment Share on other sites More sharing options...
Gatorman Posted October 5, 2008 Share Posted October 5, 2008 wow those are pretty Link to comment Share on other sites More sharing options...
Guest bmorefossil Posted October 5, 2008 Share Posted October 5, 2008 To me, this is a defining statement of what it's like to be bmorefossil lol Link to comment Share on other sites More sharing options...
MikeD Posted October 5, 2008 Share Posted October 5, 2008 Very cool! Link to comment Share on other sites More sharing options...
Roz Posted October 5, 2008 Share Posted October 5, 2008 Bmore, I bought a small hand held one online several years ago. My big plan was to use it at night at the Ouachita River when I lived in AR. Never did hunt there in the dark. Anyway, this is the kind I bought Handheld Blacklight Welcome to the forum! Link to comment Share on other sites More sharing options...
JohnJ Posted October 6, 2008 Author Share Posted October 6, 2008 A double treat... Those are really beautiful.I take it chalcedony must be really heavy then. Roz, Like Tracer alluded to, chalcedony isn't heavy per se. If you picked up a bottle cap and it was as heavy as a marble, you'd be surprised. I was expecting a "light" live clam and it wasn't that light. I'm glad it wasn't live. The human mind has the ability to believe anything is true. - JJ Link to comment Share on other sites More sharing options...
Guest Nicholas Posted October 6, 2008 Share Posted October 6, 2008 Great stuff! I love the usage of the laser pen, good highlighting. Link to comment Share on other sites More sharing options...
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