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darcyj76
starting to shine!

Member since February 2021
Posts: 45

Multiple Questions! Feb 20, 2022 14:07:05 GMT -5 allbetzoff and dillonf like this

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Post by darcyj76 on Feb 20, 2022 14:07:05 GMT -5

Hello everyone!

I have been having some issues with cracking and bruising in rocks that I never had trouble with before, mostly jaspers. These questions are based on the fact that I have had success previously, and I am currently NOT having success, and I am not sure why - I haven't changed anything in my procedures.

I use the MichiganRocks method of tumbling until they are perfect, so stage one lasts a very long time in my rotaries, then I move on to my Lot-O.

The Lot-O is in the garage, and I live in Ohio, so it is often below freezing in there.

1. Do I need to accept that I am not MichiganRocks and not tumble quite so long on stage 1?
2. Could the temperature outside be contributing to the cracking and bruising in the Lot-O?
3. I use ample cushioning - plastic pellets when needed, ceramic media, adding soap bits to the water - and I still get the cracks and bruises
4. I do a wash cycle after each phase, and I change out the grit every 5 days/when it gets too smooth - could there be something there that I am overdoing causing them to crack?
5. Does the temperature of the added water affect anything?

Any thoughts would be appreciated!

jasoninsd can identify rocks - even green ones I Wish I Knew Half The Stuff I Thought I Knew 30 Years Ago! Member since July 2020 Posts: 18,363	Multiple Questions! Feb 20, 2022 15:09:37 GMT -5 darcyj76 likes this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by jasoninsd on Feb 20, 2022 15:09:37 GMT -5 Sorry, I don't have any answers to your specific questions...but my first thought was, did you get a bad batch of rough...or are you using the same rough you were when you were having success?
	Favorite Quotes: "It always seems impossible until it is done." - Nelson Mandela "Life becomes easier when you learn to accept the apology you never got." - Robert Brault "You can't wait until life isn't hard anymore before you decide to be happy." - Nightbirde (RIP 2/19/22) My Etsy Shop: www.etsy.com/shop/MadBadgerLapidary

rmf
fully equipped rock polisher

Member since November 2017
Posts: 1,878

Multiple Questions! Feb 20, 2022 19:19:53 GMT -5 darcyj76 likes this

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Post by rmf on Feb 20, 2022 19:19:53 GMT -5

darcyj76 I do not use a lot-o so I will leave that to the experts here. The water temp should not matter. The friction generated in the tumbler should keep thing above freezing unless it gets really cold (not sure the exact temp since I have not experimented on this). Do you have pictures of the precise problems you are seeing. It could be material or process so a "picture is worth a thousand words". If you do jasper and agates together does one type come out ok and the other not? Agates and Jaspers have different structure fibers vs balls and agates tend to be tougher.

waterboysh
spending too much on rocks

Member since April 2021
Posts: 386

Multiple Questions! Feb 21, 2022 9:28:43 GMT -5 darcyj76 likes this

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Post by waterboysh on Feb 21, 2022 9:28:43 GMT -5

At what point are you seeing this? Your post doesn't make it clear if you're seeing this after stage 1, so you're putting them back into coarse trying to fix the issue. Or, are you seeing this after running them through the Lot-o?

afterburnt starting to spend too much on rocks Member since June 2021 Posts: 152	Multiple Questions! Feb 21, 2022 13:13:41 GMT -5 darcyj76 likes this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by afterburnt on Feb 21, 2022 13:13:41 GMT -5 Just a "WAG" but if your rough is crushed maybe tumbling is just revealing the cracks and bruises?

darcyj76
starting to shine!

Member since February 2021
Posts: 45

Multiple Questions! Feb 22, 2022 19:22:00 GMT -5 via mobile

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Post by darcyj76 on Feb 22, 2022 19:22:00 GMT -5

Good questions!

It is different rough, but from the same place.

The cracking is happening after stage 3.

And I’m not mixing jaspers and agates, his is happening on batches where I just tumble one specific type (fancy jasper in one case).

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