Decided to give tumbling a go for my first time, Ended up with all these little cracks. Is it from not cleaning my rock tumbler enough between grits? : r/RockTumbling

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Can you make homemade sea glass with beach sand in your rock or gemstone tumble-polish machines (such as The Rock Tumbler)? - Quora

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Can you make homemade sea glass with beach sand in your rock or gemstone tumble-polish machines (such as The Rock Tumbler)? - Quora