Banded Chert, Tumbled
Вставка
- Опубліковано 2 лис 2024
- In this video, I show some banded chert that I've tumbled in the past and I open up a barrel with a large piece of chert that has been tumbling for close to a year.
Recipe:
Everything was done in rotary barrels
46/70 silicon carbide for a long time. I did weekly checks until it was ready for the next stage.
I moved to a three pound barrel at this point. The barrel wasn't too much bigger than the rock. I used mixed sizes of ceramic media as filler.
220 silicon carbide - two weeks.
500 aluminum oxide - two weeks.
Aluminum oxide polish - four weeks
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michigan-rocks...
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Kingsley North is a lapidary store in Michigan's U.P. They make a great cab machine and sell many other brands too. They have a huge selection rough rock, tumblers, grit, jewelry supplies etc. at good prices. I buy most of my coarse grit from here in 45 lb. bags. It's the best price I have found. If you buy using the following link, I make a small commission.
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This is the cabbing machine I use:
kingsleynorth....
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Mere words are all I have: TY for sharing your love of hounding; the many, special, almost hidden or forgotten secret Worlds of this Great State; the treasures you find, that entice us to get out there ourselves; the work, labors of love, you put in, pulling the beauty, uncovering their glory, from many unappreciated, undervalued specimens.
Well done, Sir. Namaste
So you like what I've been doing?
Loved those rocks, so beautiful.
Man I love this! Those are just gorgeous man, the shine you get is something I’m yet to achieve!!! And those bands... just glorious mate! Thank you for showing us the beautiful side of chert, all to often I hear “oh it’s just chert” but man oh man, I’m blown away.
Rookie Rockhounding some chert is just plain and boring, the local banded ones can be great. Most of the local stuff is not banded.
Those are so cool!!!! That last one you showed the back of it almost looks like a feather !!!!
Breathtakingly beautiful. Chert can be any color. Another word for "banded chert" is agate. Technically, agate is defined by being chert that has variously colored layers or bands. But by any name, it's all the same hard stuff, non-crystalline quartz colored by different minerals. More than a year of tumbling is amazing, Rob. But the beauty is a product of your admirable patience. More important, you SAW the beauty in the stone before you even put it in the tumbler. Thanks for showing us.
Cactus Wren I don’t think banded chert is the same as agate. Agate is usually (always?) translucent. This is not translucent. I think you could say that agate and chert are both types of microcrystalline quartz, and both can be banded. www.quartzpage.de/gen_types.html
Very pretty. Beautiful job of polishing. You are amazingly patient to tumble that for an entire year. WOW
You knew it was going to be a pretty rock and after a lengthy process you were right it is magnificent. How fortunate for you to have found it!
Jodi Gould I’m very lucky to have found it!
Those are totally amazing. Beautiful doesn't even begin to describe them. I also know that your tumbling ability has a lot to do with it. You put the extra effort to bring out the best in each one. Love your videos. Really appreciate all you put into them. Davin
It takes patience to polish rocks well. That gets easier the longer I do this. At first, I could hardly wait a week to open the barrel. That was fun too though.
how interesting a banded chert looks so amazing after tumbling and polishing !! nature's work of art ! thanks for the short but sweet video !! GO BLUE !
Beautiful chert! Lucky guy you! Gonna have to hit the beaches around that area when I go back home for a visit for sure!
Really good chert is hard to find, but looking is fun whether you find it or not.
Absolutely stunning. Chert is such an underappreciated rock. Thanks for sharing those beauties. And it's good to know ceramic works well in the last stages too so thanks for that as well. Been meaning to tell ya I got my first brilliant shine on a batch of stones thanks to your method. Appreciate all the help you give.
Congrats to the 10k!
Cheers😎🏞
Honestly, I’m pretty inexperienced with rotary tumbling in the last stages. I just tried using ceramics in a rotary for the first time with this rock. Congratulations on your first shiny rocks!
Very impressive. Beautiful rock. Long process but worth it.
Awesome! Love the rocks. Thank for the before and after pictures.
I usually forget to take them. I’m glad I did with that one.
Some pretty big ones. It came out great. Nice collection. Was fun to watch. Great video
Your videos are so enjoyable! Always learn something. Bet you're a terrific teacher!
I agree, our four grandsons would enjoy a teacher like you!
Are you a science teacher? Our school is looking for one
Those turned out really great! I honestly didn't know chert would turn out like that with some TLC! Great video!
Agate Dad I sure don’t pass them up. I’m excited to find a nice one. They’re pretty rare.
They are beyond beautiful, great and results.
Beautiful rocks! Love the bigger rock. Kind of reminds me of wood grain.
Wow, gorgeous stones!! Glad to learn about this stone. Will be looking for chert now! Thanks
Not all chert is banded. Most of what I find here is just plain tan or gray. It still shines up nicely but the bands are what makes it cool. Look for the banded stuff.
Thanks, good to know.
Banded Chert ... The rock that caught the waves of the ocean. Stunning.
Thank you so much for sharing.
I gave you a drum roll for the big reveal.
Anita Mitchell thanks for the drum roll. I love your description, “the rock that caught the waves of the ocean”, or in my case, the waves of the lake.
@@MichiganRocks True that ... only your lake is nearly big enough to be considered an ocean. It's massive.
This is my all time favorite rock! I remember finding them as a child on the dirt road I lived on in the Thumb of Michigan. It reminds me of the rings of Saturn.
I find very, very few really good banded cherts around here. I like a good banded chert almost as much as an agate.
@@MichiganRocks on a side note I got your crosses, they are beautiful
@@dandickinson1003 Oh, great, thanks for buying them.
I was just thinking the same!... How can a beautiful rock look like gas clouds like the surface of Saturn!? Nature is mind blowing! Wow... 🤯
Yes. I was excited! Probably not as excited as you but excited none the less! Good video.
Hello from East Tawas. I am in a wheelchair now but used to love cutting and polishing gem stones and making jewelry. I miss it. Nice to see a fellow rock hound so close. Ric
Master StAndrew I’m sorry you can’t get out rockhounding. I’m probably not as experienced as you, so feel free to give me some pointers.
Have not been tunning in for awhile now but i am glad i did. Those rocks are gorgeous! Love them. Tammy🌻
Thomas Nathan you’ve got some catching up to do. Check out my sulphur island video and the underground river video. Those didn’t get a ton of views, but I thought they were interesting places.
Will do. Have been so busy of late.
Great looking stones thanks for sharing
Beautiful. Some of the nicest rocks that I've seen.
I think banded chert is under appreciated. The really good ones are just about as good as agates.
WOW!!!..it's beautiful!!.. I'm kicking myself right now because I have seen many chert stones on many beach excursions for the most past subbed them leaverites...I leave them right there..shame,shame on me!..I will most definitely be picking these guys up for closer inspection this rock hunting season.Your pieces are stunning my friend. Thanks for sharing and waking me up to yet another great Michigan stone to look for.
I leave behind most chert. Most of what I find is just plain. I tumbled some of that when I first started. It shines up great, but it's just a plain, boring rock. You have to find the banded stuff if you want it to look great.
Norwood has banded chert like I showed in the video, but it's not as nice as the occasional piece I find in Lake Huron.
Thank you very much! Keep up the great job up there. Respectfully, Mike
Very beautiful collection of rocks, thank you for sharing. Hope your weekend is great
Best wishes
Wow you have really inspired me to get into rock polishing. I don't know if we have much good stuff here in Norway, but I know we have pudding stone in my region. If I went to Denmark I could probably get some amber...
ettenA I don’t know anything about polishing amber. I just know that it’s really soft, so you wouldn’t be able to tumble it.
Wow!! Stunning , thanks for sharing! 😍
Very nice
I live in WV and the state road dept adds chert to crushed limestone here to put on gravel roads. I have tumbled quite a few pieces of it myself and it always turns out great. Most of the material I find here is the plain light gray color without banding but, if you are persistent, really nice banded pieces can be found.
We have mostly plain stuff, but it’s the banded ones that make me really happy.
I live on the south coast of the UK and found some rocks like this on my beach, always wondered what it was! Makes sense now, because most of the beach is flint down here!... I've learnt a lot from watching your videos. Thank you so much. 😊
I think flint and chert are basically the same thing. I believe flint forms in chalk while chert forms in limestone, at least that’s one thing that I have read.
@@MichiganRocks The chalk cliffs near me are called 'Beachy Head', it's fascinating to see the layers of flint in them, lots of fossils too! Ammonites mostly. Thank you for your knowledge. 😃👍 I'm going to look more closely when I go beach walking now! 😁 (new subscriber!) 🪨
Stunning!
At 3.28 that back side is wow! Close up please...... maybe mount in on a small carousel..(sp) even a wind up. Thank you for your dedication to your craft....
I watch a lot of your videos because I've loved rocks since I was very young. So I'm one of the people who moan and groan at what you leave behind. Our moans and groans are not criticism of you and your methods..... rather they are just admitting we are true nutcases who would be hard put to use any discrimination! As a moron when it comes to rocks, I truly am aware that you are way, way ahead of lots of us and I envy your knowledge and ability to use common sense judgement. Please don't be offended by our sighs and cries!!!!
Oh, I'm not offended at all. I realize why people comment on the ones I throw back. It reminds me to be thankful for the really great beaches I have access to.
Really enjoy your channel
Wow those rocks turned out nice.
They look great 👍cool banding!
Thank you for video. Such a beauty!
I love rocks with bands and what I call, 'bullseyes'. Unfortunately, I don't have a rock tumbler but I love them just the same. Most of my rocks are quite small and have been found off the sides of roads and such. I used to 'walk' my cat and we would often stop so he could sit in his favourite spot. Basically, a mound of rocks. I picked through that mound so many times while he sat on his mound....I'm guessing that he was listening for mice and such, in the tall grass on the other side. Certainly made for a good way to pass the time while he 'hunted', lol.
The Alpena chert is unreal. The big guy is stunning. A year. Wow.
I'm not sure that it was a year, but it was a really long time.
@@MichiganRocks Well in nature it would've taken thousands of years or more. So a year ain't bad.
Great video! All those rocks look great too. Very impressive. That is superb work!!
Thanks. I've been tumbling for a few years, so I've gotten pretty good at it. I don't usually rotary tumble in the last stages, so this one was a thrill for me too. Usually I use a vibratory tumbler after the first stage.
Beautiful!
I find some really great chert here in MN...nothing as beautiful as your banded chert, but it polishes up fantastic...rock on
Yep, chert is hard and takes a great shine. I've don't some plain chert before too. Without bands, it's usually pretty boring.
It has some cool features and lines, but not as pretty as yours
Those are just beautiful.
Those are so beautiful! 😊
Those are beautiful!!
So nice! Keep up the great videos.
Beautiful stone. It was worth the wait
But you only had to wait four minutes!
You're right, too funny
I don't know how I missed this last year. Man, that chert is beautiful!. I don't blame you on your favorite. My wife saw that and just gasped. She wondered why we never found any that pretty. Havagudun bud.
A really good chert is among my favorite rocks to find. The really nice ones are few and far between though.
Sir, you have amazing talent. Those rocks are beautiful. You sure inspire a fellow to do much more. Great job !!!!
Thanks!
Wow! I liked the back also!
Really cool rocks!
Thank you!
That was beautiful!
Yep, that's a really nice rock. I don't find many of those.
Wow! That is lovely. I think I picked up some chert. I’ll definitely tumble it.
Yes, throw that stuff in the tumbler!
Outstanding!
Absolutely beautiful!!!
Great job 😊😊😊
Wow. Really nice.
Beautiful rock.
Denise View God does good work, doesn’t he?
Wow, those are gorgeous. Certainly could give Botswana Agate a run for the money. Very comparable.
Look up "Polish flint". Polish like the country, not the finish on the rock. This stuff looks almost exactly like it.
Oh my gosh it does! Is it actually 1 and the same? That's crazy.
@@betojdesigns Not the same because my chert doesn't come from Poland.
So we have chert all over the place here. It is still in a super rough form not like the pieces that you have found. I am wondering if it would still tumble like yours has. That is beautiful!
I would think so. If it's not banded it will probably look pretty boring though. I have tumbled plain chert and, although it gets shiny, it's just not very interesting.
A boring name for such an amazing rock!
We should come up with a better one. Any ideas?
Very cool rocks ! Thanks Rob for sharing your very cool hobby ! By the way, my husband and I met at MSU, yet our daughter chose UofM and her spouse went to Notre Dame ! We are a house divided for only this coming weekend !
Go Blue ! 💛 + 💙 = 💚 MSU
Denise Angonese I’m not really a football fan, but it sounds like we have a better chance of winning this year. I’ll be freezing my butt off sitting in my deer blind on Saturday, so I won’t be watching the game.
That is absolutley beautiful
I think so. Really good banded chert might be my favorite rock to find locally. I don't find many that are really spectacular like this one.
@@MichiganRocks I live in oregon and we don't find any thing like your beautiful rocks.
@@grandmasworld2403 I have seen some really great rocks from Oregon. You have lots of obsidian, for example.
Hi...ich kann mich immer nur noch wieder !!! EINMALIGE SCHÖNHEITEN 👍👍👍👍👍👍👍ich wünsche dir und deiner Familie ein schönes Weihnachtsfest und bleibt gesund In dieser verrückten Zeit...Gruß aus Biblis
Frohe Weihnachten Norbert! Grüße aus Alpena, Michigan.
@@MichiganRocks Danke 👍😉
Oooo aahhh, 👏👏👏very cool rocks, thanks for sharing
Love it - just gorgeous!
Great video. Thank you for sharing :) wish I could find chert like that here in Northern California. Looking forward to watching more.
I don't find that many really nice banded cherts. This one made it upstairs to be put on display. That doesn't happen often.
So cool!!
Amazed at how good those stone look without having much color to them. I found a small piece of banded chert in the Southbranch Creek and thought it was colored glass.
Wondering about Feldspar. It looks better dry than wet. Does that mean you shouldn't polish it?
Merlin Jones Do you mean that you shouldn’t polish it because it looks better dull than shiny? If it looks sort of shiny or waxy when dry, I would take that as a sign that it might look good polished.
WOW! .....WOW!
WOW!
I am new to tumbling. When you run Stage 1 Course for weeks how often do you check the progress and how often, if you do, change out the grit? Much appreciated.
I clean the rocks off once a week. I take out any rocks that are as rounded as I want, put in new rocks, add fresh grit, and start them rolling for the next week.
I have a lot of complete tumbling videos. Pick one that looks most like what you're trying to do. For most people, the second video is probably best, unless you have a National Geographic tumbler or something similar.
Rotary tumbler followed by vibratory tumbler: ua-cam.com/video/hz2E0xJYEWY/v-deo.html
Rotary tumbler with ceramics: ua-cam.com/video/dYGFal0e1WY/v-deo.html
Rotary tumbler with plastic pellets: ua-cam.com/video/EnNvywwztr8/v-deo.html
How to use a Nat Geo Tumbler: ua-cam.com/video/CsTc1kXUuPo/v-deo.html
Tumbling beach rocks in a Nat Geo tumbler: ua-cam.com/video/_Vmm24Fc7j4/v-deo.html
Thats awesome!!!
I was pretty happy with that rock. It made it out of the basement for display upstairs.
To be honest you can put any rock into a rock tumbler to make it look awesome, and that is AWESOME.
That's not true. Some rocks are very difficult or impossible to tumble.
Michigan Rocks of course! I was just joking about that you can put any rock into a tumbler, I know that calcite is very hard to tumble, so is fluorite, talc, gypsum, since all those stones have a mohs hardness scale of either 1,2, or 3. Fluorite can vary in hardness by 0.5 on the 4.0 to the 4.5. The entire point of my comment was to encourage experimentation with all rocks. I should have been more careful with my wording on that comment, apologies for the confusion on what I meant.
@@2020-o3h Oh, sorry, I thought you were serious. I didn't want you to be disappointed if you threw some crumby rock into the tumbler and getting smaller crumby rock out.
Michigan Rocks ah don’t worry! I’m actually pretty experienced in tumbling softer stones, I know to skip the coarse round and add only that specific stone so no others get smaller! But I’ll never be as awesome as you are with rock tumbling, your polished crazy lace agates look like art pieces. Edit: i also add plastic pellets when tumbling soft stones!
Michigan Rocks also during quarantine I’m gonna watch all your videos, possibly rock tumble the same stuff as you!
Awesome
Ai meu Deus que lindo demais parabéns estou encantada
Question, with your ceramic Media, did it thicken up the slurry as the process went?
Ceramic is very hard, so it doesn't wear much while tumbling. It does wear some though, so I suppose it thickened the slurry very, very slightly. The most slurry thickening happens in the first stage when I don't have any ceramic in the mix. That's because in the first stage, I use 46/70 grit that grinds away rock a lot faster than the finer grits in later stages.
I've never seen Chert look so good! We have similar banded Chert here on the shores of eastern Canada. What is your procedure for tumbling one big rock such as you did with the piece in this video? I've never tried it but have a couple of rocks I want to do. Any advice would be appreciated! Thanks!
I ran this through many weeks of coarse grit until all the holes and cracks were gone. I did this in a six or twelve pound barrel I don't remember which and it doesn't matter. I did all the other stages in a three pound barrel. I used mixed sizes of ceramic media and no other rocks. It spent one week in 220 silicon carbide grit, ten days in 500 aluminum oxide and two weeks in aluminum oxide polish.
Michigan Rocks did you use the ceramic media in the coarse grit? And are you filling the barrel 2/3 full with the ceramic media?
@@RockhoundingLife In coarse, they were just in with other rocks. I never use ceramics in coarse. If I don't have enough smalls, I use saw scraps.
I shoot for 2/3 or 3/4 full, but usually just do it by guessing. More full protects the rocks a little more, but slows the action down some.
Thumbs up!
Ok, I gave you a thumbs up AND a heart.
3 Minute mark Oh Yeah...!!! Nice work very nice...
Thanks!
have you ever thought about setting up an online shop? ebay maybe?
KDH I’ve thought about it, but it seems like a pain. I work full time, so I don’t have time to package things up and run them to the post office. Making videos is very time consuming too. There’s only so much time in a day.
wow!!
Wow, what a change. That is amazing. I have heard that chert will stick to your tongue and is one way to identify it. I have not tried and don't think I will.
I lick rocks on the beach, mainly on Lake Superior when looking for agates. I don't think I've ever had a reason to lick chert because I think I can identify it pretty easily. I'll have to give it a try.
@@MichiganRocks I used to lick rocks too lol until I actually thought about dog pee & seagull poo!
I had no idea that banded chert could look that good. I always pass up chert. When I first started rock hunting, I sometimes had a hard time telling it apart from Leland blues.
I don't know if I've ever seen banded. Can it be found in Leland?
GO BLUE! My daughter is on the rowing crew there.
@@lisafleis1046 I usually pass it up, but if it's nicely banded, it comes home. I haven't licked seagull poop yet, but it's probably only a matter of time.
Which discoveries, have impressed or interested you most about Michigan Rocks?
That's a tough question. There's so much cool stuff here. The Keweenaw Peninsula jumped to my mind right away. There are so many cool rocks and minerals up there. It's also just a beautiful place. Canyon Falls is my favorite waterfall of the ones I've visited. It's not the biggest at all, but the canyon is just really pretty. I also lived here in Alpena for years before I realized that we have a lot more fossils than most places. My favorite rock to find has to be the Lake Superior agate, although I've found very few really nice ones.
Hi Rob. I took your advice and my wife and I went to Norwood and found some really nice banded chert. I am getting ready to polish some but I noticed that most all of it has relatively sharp, deep, edges and I am a little concerned that it will take a really long time for the coarse tumbling. Any suggestions on how to possibly reduce the coarse step? Maybe cutting some of them to try to remove the deep portions? Thank you in advance for all your videos, they have REALLY helped me learn a lot of this new hobby I have chosen.
You can always cut or grind rocks before putting them in the tumbler. Cutting is cheap because saw blades last a long time. I always thing twice before grinding just because wheels for my cab machine are so much more expensive than tumbling grit. I save the wheels for really nice rocks.
Thanks. I can’t thank you enough for all the advice and help. Norwood beach was a nice surprise with a lot of great stones. Can’t wait to see how some of them turn out.
My dad was raised in Alpena.
Lucky him! I love it here.
WOW!!!!!
WOW. VERY nice stones.
Thanks for sharing.
Oh... and a technical question - can you tumble small stones (1cc-2cc) and do they come out as nice as the big ones?
I'm asking because I like embedding stones (agates, for example) in my own design of pendants and earrings for my wife (I don't sell these).
Thanks!
Saar
Yes, most of the rocks I tumble are small. Mixed sizes work the best. This is the largest rock I've ever tumbled. I have a video about tumbling crazy lace agate. Those rocks are much smaller and turned out great. I'll have more tumbling videos this winter.
I also tumble other shaped rocks that could be made into jewelry. If you have shaped the rock into an oval or something, you should use a vibratory tumbler to retain the shape. If you don't care if the shape changes, then the type of tumbler doesn't matter.
@@MichiganRocks I have seen the crazy lace agate video - that is really superb (both the video and the agates). I personally used to tumble too - years ago - but I used my homemade roller to ball mill charcoal to fine powder and make my own rammed charcoal sticks for drawing. I don't tumble rocks (I just buy them from ebay... sad, I know). Keep up the wonderful work :)
3:00 beautiful
Chert! holy wha...I found a big rock, dry picking, it's half agate and half chert. Had a guy polish it, but he only polished the agate. i wish he'd have done the whole thing! These are stunning! What do you do with all these beauties?
I usually stick them in a cabinet in the basement. I have some around the house to. This one might make it upstairs.
@@MichiganRocks you need a store!!~ Oh hey...when you retire....cool!
Thanks for your amazing videos, brings out the dormant rock-hound in people! You mentioned in a comment here, that you have other videos, somewhere I saw there are around 65. I can’t find others, just keep seeing the same 10 or so. How to find those please?
Under the video, on the left side, you'll see my channel name, "Michigan Rocks" and my picture in a little circle. Click on that. That will bring up a whole page of videos sorted into categories. On that page if you click on "Videos" near the top, you'll see all of my videos listed in order with the newest one on top.
If you don't want to miss future videos, click the subscribe button and the bell. That will let you know when I post something new.
Michigan Rocks Oh excellent! Thanks very much! LOVE watching your videos, very interesting, wish I was there! 😁👍🏻
good lord...now i'm interested in rock tumbling
And why wouldn't you be? It's fun!
Very nice chert. What polish do you use? Thanks.
I use aluminum oxide polish from The Rock Shed. There's a link to the store in the description of this video and I also have their polish in my Amazon storefront.
WOW! ❤
wow...realy nice
I love a really good banded chert. Chert this nice is not super common around here, so it's a special treat when I find one like this.
@@MichiganRocks you realy inspired me into rock tumbling so im ordering stuff to get started...:)
will be looking forward to watch more of your great work... im not to far from Lake st-louis up here in Canada but will be ordering rough semi precious on Ebay and a few other sites...thanks again and stay safe ...✌️
awsome peice u got there its a wow factor of 9 on the rockter scail....lol
@@simonac688. Good luck with your new hobby!
@@MichiganRocks Thanks 👍
These are some nice rocks, let us know when or if you decide to sell.
I probably will sell some someday, but it will be at local craft shows, not online. I'll let everyone know if I change my mind though.
@@MichiganRocks I understand that and I'm to far away from where you would be if you chose to sell.
Just curious why you are not wearing rubber gloves when you put your hand in the silicon carbide slurry? Silicon Carbide MSDS mentions that it is known to cause cancer with regular skin exposure.
The slurry was aluminum oxide, not silicon carbide. I have never heard anyone on the online forums mention hazards of skin contact with silicon carbide, while protecting your lungs with a respirator is mentioned from time to time. I'll look into this more. Thanks.
This says that silicon carbide grit is not a carcinogen. www.riogrande.com/article?name=Rio-Silicon-Carbide-Grit-MSDS
It looks like cancer may be caused if dust is breathed in. As for skin contact, the following MSDS mentions "Use impermeable gloves and protective clothing as necessary to prevent skin contact." www1.mscdirect.com/MSDS/MSDS00020/00271809-20170720.PDF