Tumbler
Device that smooths the surfaces and increases the luster of minerals by “tumbling” them together in a container that is cylindrical rotates. This causes them to continually bang into one another which eventually smooths their sides.
Tumbler
Device that smooths the surfaces and increases the luster of minerals by “tumbling” them together in a container that is cylindrical rotates. This causes them to continually bang into one another which eventually smooths their sides.
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