Jackmandu Posted September 7, 2021 Share Posted September 7, 2021 While out rock hounding this weekend...I came upon this unique find. Discovered in SE South Dakota down an old minimum maintenance / tractor road. I believe it to be petrified wood...or is it a unique geological specimen?? What are your thoughts??? Link to comment Share on other sites More sharing options...
grandpa Posted September 7, 2021 Share Posted September 7, 2021 I think you are correct - looks like pet. wood to me - nice specimen. 1 Link to comment Share on other sites More sharing options...
daves64 Posted September 7, 2021 Share Posted September 7, 2021 Could we see pics of the ends of the piece? For example, the left & right sides on the 3rd pic. I'm thinking this is geological in nature. Accomplishing the impossible means only that the boss will add it to your regular duties. Link to comment Share on other sites More sharing options...
ynot Posted September 7, 2021 Share Posted September 7, 2021 How hard is it - moh's scale? Does if fizz with vinegar? Link to comment Share on other sites More sharing options...
Jackmandu Posted September 8, 2021 Author Share Posted September 8, 2021 Here are the side views...no it did not fizz with vinegar...however the white crust that was on top of it did...took most of the day to get rid of it. I don't have a known standard for the hardness test. Link to comment Share on other sites More sharing options...
tombk Posted September 8, 2021 Share Posted September 8, 2021 The first of those side views looks more like fairly level and straight geological layering than like a wood-grain pattern. So I’m leaning geological. Link to comment Share on other sites More sharing options...
grandpa Posted September 8, 2021 Share Posted September 8, 2021 I'm going to hang in there with Pet. Wood. 1 Link to comment Share on other sites More sharing options...
FranzBernhard Posted September 8, 2021 Share Posted September 8, 2021 2 hours ago, tombk said: looks more like fairly level and straight geological layering The red or the green direction? The lines in the red direction remind me somewhat of saw marks . Franz Bernhard Link to comment Share on other sites More sharing options...
tombk Posted September 8, 2021 Share Posted September 8, 2021 In the red direction, but not only on the red lines. The areas between and within them appear different to me as well, as though they were deposited in different times. 1 Link to comment Share on other sites More sharing options...
FranzBernhard Posted September 9, 2021 Share Posted September 9, 2021 9 hours ago, tombk said: In the red direction, but not only on the red lines. The areas between and within them appear different to me as well, as though they were deposited in different times. Thanks! Yes, the smaller-scale, thin, wavy pattern is all over the specimen. I am recognizing a pattern perpendicular to this wavy pattern here all over the specimen: Franz Bernhard Link to comment Share on other sites More sharing options...
ynot Posted September 10, 2021 Share Posted September 10, 2021 On 9/6/2021 at 5:33 PM, Jackmandu said: I believe it to be petrified wood...or is it a unique geological specimen?? What are your thoughts??? On 9/6/2021 at 9:24 PM, ynot said: How hard is it - moh's scale? Does if fizz with vinegar? ???????????? Link to comment Share on other sites More sharing options...
ynot Posted September 10, 2021 Share Posted September 10, 2021 Link to comment Share on other sites More sharing options...
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