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Post by holajonathan on Aug 1, 2021 17:53:23 GMT -5
Continuing with tumbles from the past 6 months. From West Texas or Michigan. Michigan rocks are either lake superior agates or glacial till from SE Michigan. The Texans begin at #10. My favorites: 4, 11a/b, 14 1. Chert 2. 3. Agatized coral 4. 5. 6. Chert 7. 8. Quartzite 9a. Included quartz with opal-like spots 9b. 10. 11a. 11b. 12. 13. 14. 15.
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catskillrocks
fully equipped rock polisher
Member since July 2008
Posts: 1,270
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Post by catskillrocks on Aug 1, 2021 19:00:59 GMT -5
Awesome bunch of liquid tumbles!
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Post by rockinnorrisfam on Aug 8, 2021 19:02:36 GMT -5
Beautiful, May I ask what #12 is?
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Post by jasoninsd on Aug 8, 2021 20:40:10 GMT -5
What the heck! How did I miss this thread?!? - I like those pieces of Agatized Coral...the gray one in particular! - I love the pattern that came out in 11a! - I think #12 is my favorite out of the batch! It looks like trees emerging from some kind of a foggy scene...kind of surreal on that one!
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Post by stephan on Aug 8, 2021 21:26:58 GMT -5
What the heck! How did I miss this thread?!? - I like those pieces of Agatized Coral...the gray one in particular! - I love the pattern that came out in 11a! - I think #12 is my favorite out of the batch! It looks like trees emerging from some kind of a foggy scene...kind of surreal on that one! Agreed. A bunch of cool stuff, but that coral is something else
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Post by perkins17 on Aug 8, 2021 22:39:16 GMT -5
Wow! That is an amazing tumble. I'm not quite that good yet.
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Post by stephan on Aug 9, 2021 0:31:34 GMT -5
Beautiful, May I ask what #12 is? I’m gonna venture a guess on Marfa agate.
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Post by holajonathan on Aug 9, 2021 1:05:14 GMT -5
What the heck! How did I miss this thread?!? - I like those pieces of Agatized Coral...the gray one in particular! - I love the pattern that came out in 11a! - I think #12 is my favorite out of the batch! It looks like trees emerging from some kind of a foggy scene...kind of surreal on that one! Agreed. A bunch of cool stuff, but that coral is something else Those corals, and ones like them, are probably the nicest rocks that the glaciers dropped around here during the last ice age. The Lake Superior agate glaciers didn't pass over southeast Michigan where I live. Those passed from Canada, over the upper peninsula of Michigan, on through Wisconsin, Minnesota, and Iowa. Here in SE Michigan, we got some much less exciting glaciers that came down from around Ontario and over lake Huron. I can find lots of coral fossils, but most are pretty unevenly filled with chert and quartz. In other words, most pieces have a lot of limestone or dolomite mixed in which ruins the possibility of tumbling or cabbing. On occasion if I tumble off the limestone / dolomite I find a solid core of chert and quartz like the ones shown above.
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Post by holajonathan on Aug 9, 2021 1:06:23 GMT -5
Beautiful, May I ask what #12 is? I’m gonna venture a guess on Marfa agate. We have a winner.
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Post by holajonathan on Aug 9, 2021 1:07:57 GMT -5
What the heck! How did I miss this thread?!? - I like those pieces of Agatized Coral...the gray one in particular! - I love the pattern that came out in 11a! - I think #12 is my favorite out of the batch! It looks like trees emerging from some kind of a foggy scene...kind of surreal on that one! You missed it because I finally got caught up on posting a whole bunch of photos, and I threw them all up in 4 or 5 different threads over a period of two days. I overwhelmed you with shiny rocks.
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Post by holajonathan on Aug 9, 2021 1:11:25 GMT -5
Beautiful, May I ask what #12 is? Like stephan said, a plume agate from west Texas, around Marfa, Texas. It's just a little rock, but it was still tricky to wear away enough of the rock to show the good plumes without getting too deep into soft and pitted areas of the rock. A challenge, but a worthwhile one.
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Post by holajonathan on Aug 9, 2021 1:15:46 GMT -5
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Post by jasoninsd on Aug 9, 2021 1:29:43 GMT -5
What the heck! How did I miss this thread?!? - I like those pieces of Agatized Coral...the gray one in particular! - I love the pattern that came out in 11a! - I think #12 is my favorite out of the batch! It looks like trees emerging from some kind of a foggy scene...kind of surreal on that one! You missed it because I finally got caught up on posting a whole bunch of photos, and I threw them all up in 4 or 5 different threads over a period of two days. I overwhelmed you with shiny rocks. Overwhelmed by what you can get accomplished is a bit of an understatement! LOL stephan jasoninsd Since you liked the fossil coral, here is another one I recently tumbled. Not a great tumble except some of the voids are filled in with a hard, shiny metal. I say hard because it didn't undercut when tumbled and the surrounding stone is quartz or chert. Probably pyrite, which is mohs 6-6.5 per wikipedia, similar to the surrounding rock. How cool is that! That's one of those finds where you wonder why there can't be an entire tumbler barrel FILLED with this stuff! Pretty amazing that hardness was similar to the host rock, so there was no undercutting!
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Post by victor1941 on Aug 12, 2021 9:21:45 GMT -5
The black plume is very much like the Bishop Ranch material south of Marfa.
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Post by holajonathan on Aug 12, 2021 10:57:16 GMT -5
The black plume is very much like the Bishop Ranch material south of Marfa. It is from Ritchie Ranch, I believe. I'm not sure how close that is to Bishop Ranch, but the black plumes in cream colored semi-translucent agate seem to be spread all around that area.
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