Laura Lea Posted August 4, 2021 Share Posted August 4, 2021 I found this in gravel. I think it's pretty cool. Would love to know what it is! Link to comment Share on other sites More sharing options...
Harry Pristis Posted August 4, 2021 Share Posted August 4, 2021 Not a fossil. Appears to be a bit of onyx. Onyx is formed of bands of chalcedony in alternating colors. It is cryptocrystalline, consisting of fine intergrowths of the silica minerals quartz and moganite. Its bands are parallel to one another, as opposed to the more chaotic banding that often occurs in agates. [wikipedia] 5 2 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...
Fossildude19 Posted August 4, 2021 Share Posted August 4, 2021 Looks like Beekite. Neat find. 1 1 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...
Laura Lea Posted April 23, 2022 Author Share Posted April 23, 2022 But here's the thing. I really think it MIGHT BE silicified or agatized horn coral. I will take pictures of more of my collection and will value ALL opinions! Thanks for those who already replied. Link to comment Share on other sites More sharing options...
Harry Pristis Posted April 23, 2022 Share Posted April 23, 2022 12 minutes ago, Laura Lea said: But here's the thing. I really think it MIGHT BE silicified or agatized horn coral. I will take pictures of more of my collection and will value ALL opinions! Thanks for those who already replied. And, it MIGHT BE petrified tiramisu, but it's not -- the bands are not growth rings as certainly as they are not cake topping. Do a google search for onyx and chalcedony. 1 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 April 23, 2022 Share Posted April 23, 2022 If you want more opinions, then here's mine: Not a coral. 1 Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Mark Kmiecik Posted April 23, 2022 Share Posted April 23, 2022 It's not a coral. It does not have any of the features of a coral. None. Absolutely zero. That's why it's not a coral. The same reason a car is not a fish. It has none of the features of a fish. 1 Mark. Fossil hunting is easy -- they don't run away when you shoot at them! Link to comment Share on other sites More sharing options...
jpc Posted April 23, 2022 Share Posted April 23, 2022 horn coral has certain concentric circles like this thing (generally more very circular) but it also has features running perpendicular to those the length of the coral. These folks are right, this is an agate of some sort, not a horn coral. 1 1 Link to comment Share on other sites More sharing options...
DPS Ammonite Posted April 23, 2022 Share Posted April 23, 2022 This is an agate which is banded variety of chalcedony. The bands are curved unlike the planar/parallel bands of onyx. Wikipedia article for onyx: “Onyx primarily refers to the parallel banded variety of the silicate mineral chalcedony. Agate and onyx are both varieties of layered chalcedony that differ only in the form of the bands: agate has curved bands and onyx has parallel bands.” 3 1 1 1 My goal is to leave no stone or fossil unturned. See my Arizona Paleontology Guide link The best single resource for Arizona paleontology anywhere. Link to comment Share on other sites More sharing options...
val horn Posted April 23, 2022 Share Posted April 23, 2022 i think what you found is a very pretty piece of agate but it is as others have stated not horn coral. there are places where agatized horn coral is more abundant such as multiple sites in ohio. Here is one from Patterson airforce base that I cleaned with acid that I believe is agatized horn coral. It is not as pretty a stone as yours . 1 Link to comment Share on other sites More sharing options...
Mahnmut Posted April 24, 2022 Share Posted April 24, 2022 Imagine the layers in your stone like growth rings in a tree, the mineral formed layer by layer. A coral "builds" very regular chambers, that are not present here. Best Regards, J 1 Try to learn something about everything and everything about something Thomas Henry Huxley Link to comment Share on other sites More sharing options...
Oregon Coast Agates Posted June 6, 2022 Share Posted June 6, 2022 On 8/4/2021 at 12:21 PM, Laura Lea said: I found this in gravel. I think it's pretty cool. Would love to know what it is! Agate all day. Nice one too. 1 Link to comment Share on other sites More sharing options...
Sagebrush Steve Posted June 7, 2022 Share Posted June 7, 2022 When my family owned a lapidary shop we called this lace agate. Here’s something similar I found on the internet. 1 1 Link to comment Share on other sites More sharing options...
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