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Carboniferous wood with crystals

Svetlana posted a topic in Member Collections

Hello. I want to show you some examples from my collection. This is a Carboniferous wood. The preservation is not the best, but for me these samples are interesting for the presence of crystals of smoky and ordinary quartz on them. A sliver that has broken off from a larger fragment. There is more quartz than wood Perhaps a stem or stump - it is almost round in cross section. And thickly overgrown with crystals. Large flattened fragment; perhaps the first sliver was from it.
- June 20, 2021
- 1 reply
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Did I damage this petrified wood?

Cedric posted a topic in Questions & Answers

Hi everyone! Recently I bought this piece of blue petrified wood. In the process of cleaning, I have soak the whole piece in muriatic acid for about a day and half, and in water with baking soda for about 2 days to neutralize the acid. To my surprise the whole skin turn white and the dark blue part has turned much pale in color. I have attached a few photos below for your reference, please noted that when the whole piece is dry the white part is complete white and opaque, but when I added water, the white part became translucent. I am not sure if I have somehow damage it, or if I need to do more to remove this 'white skin'. I would appreciate anyone's advice on what is this white stuff, why adding water would change the opacity and what I should do next. Thank you. These are the photos when I first bought the petrified wood, note only the top part was cut and polished, no treatment done as yet This is after soaking in the muriatic acid for about a day and half, and in water with baking soda for 2 more days, the whole piece turned white, even the polished side change from dark blue to pale white brown color. This is after adding water, you can see the polish part has turn darker brow and the white part became translucent.
- June 20, 2021
- 14 replies
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Petrified wood or Schist rock?

packgirl posted a topic in General Fossil Discussion

Found this item in a creek in the blue ridge mountains. It is very heavy for the size. Any thoughts on if it could be petrified wood or just a schist rock?
- June 15, 2021
- 2 replies
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  - north carolina
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Possible Petrified Wood?

DVL posted a topic in Fossil ID

I'm told this may be petrified wood but it looks a bit different from the petrified wood I've seen from the southwestern states. Found on a beach in northeast US. Please let me know your thoughts. Thank you --Dwight
- June 4, 2021
- 7 replies
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Carboniferous Petrified wood for ID (Araucaria?..)

Svetlana posted a topic in Fossil ID

Hello. From a recent trip to the Perm-Carboniferous petrified wood, we brought back some very interesting fragments; nothing like this has come across before. Usually we find fragments of wood (chips), without knots, without a pronounced structure - just highly silicified, indeterminate fragments. But while this trip from a small area (just a couple of square meters), we collected several interesting fragments. This is a solid piece of the trunk with knots located at the same level. 7 knots. Another similar fragment, but split lengthwise. There are only 3 knots left, but a cavity with smoky quartz crystals has opened. I want to identify these findings. Having looked at the photographs and drawings, which depict Araucaria, I saw that the branches of this tree are arranged in "layers", i.e. on the same level. Why did I take Araucaria as a basis - in some literature, local layers are called Araucarian. I would be glad to receive any information. By the way, I have a similar trunk with knots on the same level - but it is from the Paleogene; much better preserved, replaced by chalcedony, and has 5 knots.
- June 1, 2021
- 3 replies
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Hunting trip for Carboniferous Petrified Wood

Svetlana posted a topic in Fossil Hunting Trips

Good evening. A couple of days ago I managed to go to three places with petrified wood at once. These outlets are not nature reserves; most often, these are fields that are just cultivated, roads and natural outcrops of bedrock (gullies, ravines, etc.). The first place is a small field, as well as a forest protection strip near a spruce planting (it was just plowed up). On a country road, one can see the rock outcrops, in which the wood is hidden. Large cobblestones are also found in the root-bed, but more often these are small slates. Orange clay is a sure sign that the layer we need is emerging here. Nature is waking up. Another forest protection strip... And the first finds. These are fragments of petrified wood from the Carboniferous period; but after meeting with the tractor, these are most often fragments. It has been raining recently, so the wood is easy to find. Nature amazes with its beauty! A few more pieces of wood and it's time to go to second place. Sometimes fragments with smoky quartz crystals come across. Carboniferous outcrops. General view. A sample of wood - most of this place is exactly like that. The second place is another field, and all the roads that lead to it The finds are embedded right into the road. There are also many fragments of wood in the gully - they have even been washed. You don't have to turn off the road... A sample of wood - most of this place is exactly like these. The samples are highly silicified, the structure of the tree is almost not preserved; but light quartz is visible within this specimen. Perhaps grinding and polishing will make the specimens worthy of the collection. Third and last place on that trip. This is no longer a field, although they are here too; these are old quarries. According to rumors, there was once a lot of petrified wood here. On this trip we did not find any fragments - it was starting to rain and we had to leave; besides, from this place we could not take anything - too close to the reserve. Heaps of broken stone are everywhere. The bedrock occurs at an angle to the surface. General view. An old tool. In the pit, where the stone was once mined, now a tree grows. A couple of photos before leaving. We did not find a petrified tree in this place, but we picked up such a fragment in a nearby field. A lot of iron, a lot of quartz. That's all for today. Thanks for attention. Have a good evening.
- May 31, 2021
- 4 replies
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(Almost) microscopic agates in petrified wood

ARandomFossil posted a topic in General Fossil Discussion

I thought I would share this unique piece of petrified wood I own. I don’t know if this is rare, but I couldn’t seem to find anything on this. To the naked eye, the rings of the wood are tiny white rocks. But under the microscope, you can clearly identify agates. Fraxinus Nigra is the name of the species. The microscopic pictures are too large for the post, but I think you can download them to view.
- May 25, 2021
- 9 replies
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Found in Wisconsin

BAAMM posted a topic in Fossil ID

Found my first piece of fossilized wood looking to learn a little bit more about it anybody have any information.
- May 9, 2021
- 6 replies
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Petrified wood identification

Rubykicks posted a topic in Fossil ID

I believe this is petrified wood. I Found this and a larger piece, but the larger one is a different texture. It's more smooth with dimples and I was able to figure out identification of that one, but I'm not so sure about this one. Any information?
- April 27, 2021
- 11 replies
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Just Weird...What is this???

hndmarshall posted a topic in Fossil ID

Ok found this Odd thing at first thought it might be petrified wood but I tried looking at it through a microscopic camera and could not find any of the basic fossil wood cell structure that I normally find on petrified wood. There are places on it that look mesh like? ....well I took a close up of it ... if it were some type of bone the inside would be darker right?....just not sure with this one. Found in a gravel load from the bed of the Brazos River near the West Houston Texas area.
- April 24, 2021
- 2 replies
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Landscape River Rock Finds

AggieGrass posted a topic in Fossil ID

Howdy, Couple day old member here. I am a Landscape Professional and I see alot of river rock. Lately I've moved to Austin, TX and have noticed alot of petrified wood in the rock materials we use. I'm 99% positive it is all native, locally sourced in the Texas Hill Country. Anyway I have a few pieces I'm curious to whether it's machine marks or not and a couple pieces I'm not sure if they're just gnarly rocks or not. Petrified wood ID is what brought me here and I found some good info so I signed up. Any information and help is greatly appreciated. Thanks yall!
- April 23, 2021
- 9 replies
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Petrified Wood?

psaggu posted a topic in Fossil ID

Hi All Found this on a red clay mound near my house, newly developed area, so may have been dug up during excavation works.
- April 16, 2021
- 4 replies
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Fluorescent Petrified Wood

I_gotta_rock posted a gallery image in Member Collections

From the album: Fluorescent Petrified Wood

Cypress Wood, viewed under white light (top) and short-wave ultraviolet light (bottom) Miocene Odessa, Delaware

© copyright 2021 Heather JM Siple
- April 12, 2021
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Fluorescent Petrified Wood

I_gotta_rock posted a gallery image in Member Collections

From the album: Fluorescent Petrified Wood

Cypress Wood, viewed under white light (top) and short-wave ultraviolet light (bottom) Miocene Odessa, Delaware

© copyright 2021 Heather JM Siple
- April 12, 2021
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Fluorescent Petrified Wood

I_gotta_rock posted a gallery image in Member Collections

From the album: Fluorescent Petrified Wood

Cypress Wood, viewed under white light (top) and short-wave ultraviolet light (bottom) Miocene Odessa, Delaware

© copyright 2021 Heather JM Siple
- April 12, 2021
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Fluorescent Petrified Wood

I_gotta_rock posted a gallery image in Member Collections

From the album: Fluorescent Petrified Wood

Cypress Wood, viewed under white light (top) and short-wave ultraviolet light (bottom) Miocene Odessa, Delaware

© copyright 2021 Heather JM Siple
- April 12, 2021
- - delaware
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Brazos River Petrified Wood/Bone Questions

Blxbrry posted a topic in Fossil ID

I was walking along the many trails in the Sugar Land area near the Brazos River when I found a wonderful beach with many pieces of petrified wood. I'm very new to this world of fossils and rocks but I was quite intrigued by a piece of petrified wood with what I believed to be some fossilized sap (amber?). I was wondering if anyone could tell me more about this rock or the round piece of bone I found as well. Any input would be greatly appreciated! -Blxbrry
- April 1, 2021
- 4 replies
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Clarno Wood Dig

ErikAndere posted a topic in Fossil Hunting Trips

While out wandering with friends in Clarno vicinity (the town, but probably also the formation; well away from the Palisades and on public land open to rockhounding and collection,) we came across some really vibrant, bright petrified wood, quite unusual for the area. The source tree looks like it's encased in a coarse ash or tuff, with a "shell" of harder material. The wood looks agatized but is still very brittle, too brittle for lapidary application but gorgeous for display; lot of opalized areas and mineralization. I tried to get back far enough to get a solid round but was unsuccessful (read: it was windy and I got lazy!) There was a scattering of other wood in the area, of varying levels of preservation; the formation wasn't rich with it by any means. No observed leaf fragments. Most of petrified wood we get out here is carbon-black, poorly preserved or just little brown float fragments, so finding something this bright made for an exciting day.
- April 1, 2021
- 10 replies
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Petrified Wood from Triassic of southeastern Pennsylvania

traveltip1 posted a topic in Member Collections

This display contains 100+ specimens of the best petrified wood that I found, during more than a decade of fossil-hunting, in the Triassic age Newark Basin of southeastern Pennsylvania. The material is scarce. I have plenty more smaller pieces. The shelves dimensions are 6 feet x 5 feet x 1 foot.
- March 18, 2021
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Unknown Fossil Please Help Identify

Chingazzin1 posted a topic in Fossil ID

Hi I have a fossil I found while exploring an area near Dubbo NSW australia. I taught it was just petrified wood until I cleaned it and notice on one end has colour and looks like it could have fish fins on the side. The length is 300mm and width is at its widest point 180mm. It was just sitting on side of a dirt track and also has another part to it which I will pick up next time I'm out that way again. Any help in identifying what I have here would be much appreciated as I wouldn't have a clue other than what I think it is. Thanks
- March 11, 2021
- 7 replies
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How To Create Fossilized Wood?

madeland posted a topic in Questions & Answers

My interest is in current earth conditions that would be amenable to the creation of fossils, specifically petrified wood. I want to place wood in a position where it will be likely to form petrified wood at some point in the distant future for an artistic project. I am not a scientist, although I am reasonably scientifically literate. Nevertheless, there may be blind spots in my assumptions here. I would love to hear any thoughts that forum members might have. I would imagine a group of experienced fossil hunters might have a good idea of what past conditions have been good for fossilization. It may be strange to ask but oddly topical as well - humans have been doing a lot of musing on the future fossils they are creating now. I have done a lot of research to this end, but have not found anything definitive. Maybe I'm just not looking in the right place. What I have managed to glean indicates that wood placed in sediments rich in silica may fossilize. This is very broad, but it is a start. My first thought was recent volcanic ash deposits like near Mt St Helens, but due to the cataclysm that laid the ash, there is likely to be a lot of wood in those deposits well situated to fossilize. I would prefer a situation where the petrified wood would be unusual and likely to stand out to the future intelligent being encountering the piece. There are many valleys in Nevada with non-draining basins that have seasonal lakes, and many of these are reasonably rich in silica, being derived from surrounding mountain ranges that are composed of silica-rich rock. This might be a good location, although I am still wondering about depth of placement, best soil moisture levels, and whether the alkaline conditions would be a problem. Another idea for a place would be a Volcanic Ash Flow Vernal Pool such as Boggs Lake in California. I am not sure what the pH of this soil is- fresh volcanic ash can be very acidic, but this would leach out over time, possibly creating an alkaline situation as the closed lake basin accumulates salts. Any help would be very much appreciated! I am looking for places in the western US, but really any place given as an example would be helpful. Daniel
- March 4, 2021
- 11 replies
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Petrified Plant Material Comal Co. Texas

Smotzer posted a topic in Fossil ID

Hi all! Brand new member here but long time geological fan and rockhounder. I am new to Texas and my job site has quite a bit of echinoid and bivalve fossils, and I was out rummaging around in the woods looking for some fossils when a “stone” on the soil surface stood out like a sore thumb to all the geological type base material in the area. In one little pocket in the under brush of cedar I noticed crystalline formations on material that was unique to the whole area. I am new to the whole geological formations but I was assuming it was in the glen rose formation type area. Anyone based on look have any idea? It does not immediately resemble cycads fossils I have seen which thought was the only common large petrified material in that formation. The material is solid crystalline almost agatized with the largest piece weighing 40lbs At first I thought I had hit a jackpot of sagenite. In an hour brought out 100lbs of the material. This stuff is completely set apart from base formations and material fossilized snail, bivalves are found in only with this being 100-200ft away down a small hill. Sorry I don’t have anything to Mark scale I can take pictures with coins or ruler tomorrow for y’all. This is the most pictures I can add for now let me know if you would like more or better photos
- February 10, 2021
- 16 replies
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Petrified wood in this conglomerate?

Fossilvania posted a topic in Fossil ID

Any ideas as to what this might be? Thinking could be wood remnants, maybe petrified or partially so? Northwest PA, lots of glacial debris in area.
- February 6, 2021
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Plant Cast or Animal Fossil?

Nathan8372 posted a topic in Fossil ID

Good Morning, I came across this interesting piece about 3' below-grade in Live Oak County, Texas. I've managed to dissolve some of the 'caliche' with 5% vinegar to clean this up a bit. There is pet wood and the occasional Columbian Mammoth molar in the same vicinity as this piece was found. It is relatively light for it's size, compared to pet wood. Looking for anyone who can offer an opinion/advice on this piece.
- February 2, 2021
- 7 replies
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Cut or not cut?

MarcoSr posted a topic in Fossil Preparation

I am debating whether to cut or grind smooth in several areas two pieces of Indonesian petrified wood with botryoidal chalcedony that I recently received. This is what I was supposed to have received: This is what I received (The seller removed most of the yellow surface agate.): I just don’t like the look of the pieces gouged and scratched so I want to remove as much of the damaged areas as possible and maybe grind smooth other areas. First Question: Should I try to cut the pieces or just leave them as is? Second Question: Should I cut the pieces along the red lines or somewhere else? Third Question: On the one piece should I also try to remove the top piece to expose more of the botryoidal chalcedony? The back face of that top piece is really damaged. On one side the top piece would be easy to cut because of the void underneath. The other side would be very difficult because the void doesn’t really go all the way to the red line. Fourth question: Are there areas I should try to grind smooth like area1 or area 3 or area 5? Last Question: Should I give up on trying to salvage the pieces and just try to cut out intact the botryoidal chalcedony in each piece? Marco Sr.
- January 31, 2021
- 5 replies
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