Lmilly Posted February 27 Share Posted February 27 (edited) other side: Edited February 27 by Lmilly Link to comment Share on other sites More sharing options...
rocket Posted February 27 Share Posted February 27 do you know the age of it? I do not think that it is a fossil, I assume it could be a mineral crust or nodule, limonite 1 Link to comment Share on other sites More sharing options...
Lmilly Posted February 27 Author Share Posted February 27 Unfortunately I’m still learning about geology and I don’t know any information! I found it today in a dried creekbed in Montgomery County, PA, USA Link to comment Share on other sites More sharing options...
Lmilly Posted February 27 Author Share Posted February 27 If it helps, I found specimens at the same location that are very convincing petrified wood pieces (I started exploring this location last year): Link to comment Share on other sites More sharing options...
Andúril Flame of the West Posted February 27 Share Posted February 27 Some of these do resemble petrified wood, but I would lean toward a geologic origin. Many of these appear to be some type of ironstone and I can’t make out any texture that distinguishes these from wood-like geologic structures (then again, I have not handled much petrified wood). 1 1 Link to comment Share on other sites More sharing options...
hemipristis Posted February 28 Share Posted February 28 12 hours ago, rocket said: do you know the age of it? I do not think that it is a fossil, I assume it could be a mineral crust or nodule, limonite I'd agree 'Those who cannot remember the past are condemned to repeat it.' George Santayana Link to comment Share on other sites More sharing options...
hemipristis Posted February 28 Share Posted February 28 14 hours ago, Lmilly said: If it helps, I found specimens at the same location that are very convincing petrified wood pieces (I started exploring this location last year): Some of those could be limonite-replaced wood. I've found some in the glacial gravels of the Pleistocene Columbia Fm in New Caste County, Delaware (USA) that look just like those. "Ironwood" like that has been documented in Pleistocene sediments on the Atlantic Coast of the US 2 'Those who cannot remember the past are condemned to repeat it.' George Santayana Link to comment Share on other sites More sharing options...
Lmilly Posted February 28 Author Share Posted February 28 (edited) @hemipristisThank you for sharing! Some of the pieces I find do have a brittle texture but are often intermixed with crystals. Is this characteristic of ironwood? (Examples below of the brittle specimens) If we assume ironwood, would that make sense for Montgomery county? I’m very knew to this as rockhounding is a hobby of mine but I’m extremely eager to learn. Whenever I post to forums with my questionable pieces, I often get dismissed because the location doesn’t match the expected geology for that area. I feel it’s necessary to mention this specific creekbed in Montgomery county is unlike any I’ve explored in PA or anywhere else for that matter. The bed is made of clay and I found (assuming) smoky quartz, agates, Jasper, and petrified wood layering the entire bed. Does this sound consistent for the age of the Pleistocene sediments you mentioned? brittle wood wrapped around stone (quartz?): more brittle texture mixed with hard sediment: this specimen is rock hard like the previous images I posted in this thread and includes small crystals along with some irregular markings and banding: Edited February 28 by Lmilly Link to comment Share on other sites More sharing options...
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