dillonf
fully equipped rock polisher
Hounding and tumbling
Member since February 2022
Posts: 1,190
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Post by dillonf on Mar 13, 2022 19:13:06 GMT -5
Creek RockFound in a creek in Central Texas. Has vertical striations. Softer than pocket knife steel. Most other examples are thinner, but have similar color bands. Any ideas are appreciated!! Cheers,Dillon
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What am I
Mar 13, 2022 19:21:46 GMT -5
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Post by Pat on Mar 13, 2022 19:21:46 GMT -5
Pictures, please!!
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Post by hummingbirdstones on Mar 13, 2022 19:52:20 GMT -5
Here you go, Pat!  |
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Post by Pat on Mar 13, 2022 20:28:57 GMT -5
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Tommy
Administrator 
Member since January 2013
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What am I
Mar 13, 2022 23:46:58 GMT -5
via mobile
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Post by Tommy on Mar 13, 2022 23:46:58 GMT -5
Just for clarification dillonf did you shape it or is it as found? |
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Post by amygdule on Mar 14, 2022 0:30:18 GMT -5
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Post by vegasjames on Mar 14, 2022 1:23:59 GMT -5
Could be several things. Satin spar, ulexite or calcite. Does it react to acids such as vinegar?
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dillonf
fully equipped rock polisher
Hounding and tumbling
Member since February 2022
Posts: 1,190
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Post by dillonf on Mar 14, 2022 2:56:22 GMT -5
Just for clarification dillonf did you shape it or is it as found? This was as it was found. I'll place some vinegar on some other pieces we found and report back. |
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dillonf
fully equipped rock polisher
Hounding and tumbling
Member since February 2022
Posts: 1,190
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Post by dillonf on Mar 14, 2022 3:06:11 GMT -5
I'll get some more pictures today. I'll also see if I can get any good pictures of the other specimens we found - they are much thinner in cross section and the colors are much more muted (hard to photograph). The stones fracture/cleave in straight lines. |
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dillonf
fully equipped rock polisher
Hounding and tumbling
Member since February 2022
Posts: 1,190
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Post by dillonf on Mar 14, 2022 16:18:29 GMT -5
I'll get some more pictures today. I'll also see if I can get any good pictures of the other specimens we found - they are much thinner in cross section and the colors are much more muted (hard to photograph). The stones fracture/cleave in straight lines. Photo of all sides and an additional specimen in the link below: New PhotosThe rock had no reaction to vinegar (6% acidity) Cheers, Dillon |
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Post by velodromed on Aug 27, 2023 9:18:38 GMT -5
I'll get some more pictures today. I'll also see if I can get any good pictures of the other specimens we found - they are much thinner in cross section and the colors are much more muted (hard to photograph). The stones fracture/cleave in straight lines. Photo of all sides and an additional specimen in the link below: New PhotosThe rock had no reaction to vinegar (6% acidity) Cheers, Dillon Hey buddy, I know this is an old post, but I ran across it as I am on page 11 or 12 of the rock ID help threads. I have found some that look very similar to the first one, but not in the exact same form. One in particular looks very much like your first rock, except it has more red sprays spread across it. When looking at them closely, I’m figuring they are chalcedony with some kind of feldspar sections and iron oxide rust. When I do that Tumblr barrel clean out next, I’ll show you. That is a really cool Rock you have. |
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dillonf
fully equipped rock polisher
Hounding and tumbling
Member since February 2022
Posts: 1,190
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Post by dillonf on Aug 27, 2023 11:34:46 GMT -5
Photo of all sides and an additional specimen in the link below: New PhotosThe rock had no reaction to vinegar (6% acidity) Cheers, Dillon Hey buddy, I know this is an old post, but I ran across it as I am on page 11 or 12 of the rock ID help threads. I have found some that look very similar to the first one, but not in the exact same form. One in particular looks very much like your first rock, except it has more red sprays spread across it. When looking at them closely, I’m figuring they are chalcedony with some kind of feldspar sections and iron oxide rust. When I do that Tumblr barrel clean out next, I’ll show you. That is a really cool Rock you have. Cool! I am interested in seeing what you got. These were found in Onion creek I believe. It is a bit too soft for chalcedony, but feldspar/satin spar are definitely possibilities. It is too soft for tumbling. |
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Post by rmf on Aug 27, 2023 11:39:51 GMT -5
Satin spar is not feldspar, but the common name for selenite which is calcium sulfate a gypsum mineral. as in dry wall with out the paper
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Post by velodromed on Aug 27, 2023 11:51:56 GMT -5
Hey buddy, I know this is an old post, but I ran across it as I am on page 11 or 12 of the rock ID help threads. I have found some that look very similar to the first one, but not in the exact same form. One in particular looks very much like your first rock, except it has more red sprays spread across it. When looking at them closely, I’m figuring they are chalcedony with some kind of feldspar sections and iron oxide rust. When I do that Tumblr barrel clean out next, I’ll show you. That is a really cool Rock you have. Cool! I am interested in seeing what you got. These were found in Onion creek I believe. It is a bit too soft for chalcedony, but feldspar/satin spar are definitely possibilities. It is too soft for tumbling. Ahh ok, then it only looks similar. The one I have is definitely hard enough for tumbling. It’s been running for a month now almost. It’s still a cool rock. |
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Post by realrockhound on Aug 27, 2023 14:55:28 GMT -5
Bar soap
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dillonf
fully equipped rock polisher
Hounding and tumbling
Member since February 2022
Posts: 1,190
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Post by dillonf on Aug 27, 2023 19:11:37 GMT -5
Was all chafe and no lather . . . . . not soap. |
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Post by realrockhound on Aug 27, 2023 19:14:50 GMT -5
Was all chafe and no lather . . . . . not soap. Just need to scrub harder 😂 |
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dillonf
fully equipped rock polisher
Hounding and tumbling
Member since February 2022
Posts: 1,190
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Post by dillonf on Aug 27, 2023 19:17:15 GMT -5
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Post by Pat on Aug 27, 2023 23:21:53 GMT -5
It’s an enigma!
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Rock likes waves...waves like Rock