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Post by miket on Jul 8, 2020 9:58:46 GMT -5
I don't even know how long this guy has been rolling- or even when I found it. Months and months. He used to be bigger and he's not done yet, but getting sloooowly closer. I do need some advice since I still consider myself a noob tumbler. I tumble mostly agates and jasper in my qt66 (only the coarse stage) and a good amount of them seem to get cracks. Is this from not enough cushioning media (I use pea gravel), too much or too little water, or is it just inherent in the individual stones that crack themselves? Thanks, and here's some pics.
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Post by Starguy on Jul 8, 2020 10:45:15 GMT -5
miketI’m guessing that the cracks are already there when you start. They only show up once the weathered skin of the agate gets ground away. I have seen chips caused by rotary tumbling without cushioning but not cracks.
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Post by miket on Jul 8, 2020 10:51:36 GMT -5
miket I’m guessing that the cracks are already there when you start. They only show up once the weathered skin of the agate gets ground away. I have seen chips caused by rotary tumbling without cushioning but not cracks. Thanks, that's what I was thinking also but wasn't sure. I'm always trying to improve my results and when I have "finished" stones that have been going for months and have cracks it gets on my nerves!
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Post by Starguy on Jul 8, 2020 10:57:41 GMT -5
I hear you. Cracks bother me too. I have tried splitting cracked stones by various methods with some success. The splitting process often causes more but smaller cracks.
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