The Mushroom Whisperer Posted November 6, 2018 Share Posted November 6, 2018 Hi everyone. I recently purchased a 55 year rock collection. My friend has decided he's done with his lapidary pursuits. I was going through some of the many boxes, and I found what I believe to be a chunk of fossil coral. He didn't remember where he found it, and we have a friendly disagreement regarding fossil coral vs pet wood. Any thoughts would be appreciated. They spent most of their time traveling the western states, but did make a trip to Australia. Link to comment Share on other sites More sharing options...
DPS Ammonite Posted November 6, 2018 Share Posted November 6, 2018 Probably petrified wood with pronounced rays from center to exterior. Clear, up close photos of the exterior and interior are going to be key for an ID. Are you able to look thru and take photos with a hand lens or magnifying glass? Do you see any growth rings? What is the rock made of: agate? 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...
The Mushroom Whisperer Posted November 7, 2018 Author Share Posted November 7, 2018 1 hour ago, DPS Ammonite said: Probably petrified wood with pronounced rays from center to exterior. Clear, up close photos of the exterior and interior are going to be key for an ID. Are you able to look thru and take photos with a hand lens or magnifying glass? Do you see any growth rings? What is the rock made of: agate? I took a quick pic under 10x magnification. I'll set up and take more shortly. I am not able to see any concentric rings, but there does appear to be cell like structure. The rock does look to be agatized. Link to comment Share on other sites More sharing options...
DPS Ammonite Posted November 7, 2018 Share Posted November 7, 2018 I see growth rings of wood that are at right angles to the prominant rays. Look in the central and lower left section of top photo. 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...
ynot Posted November 7, 2018 Share Posted November 7, 2018 Looks like a petrified wood to Me. 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...
The Mushroom Whisperer Posted November 7, 2018 Author Share Posted November 7, 2018 Thanks both of you!!! Link to comment Share on other sites More sharing options...
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