Hello Orchidians - I have a small, hobby tumbler which convinces me
that tumbling will round off the corners of stones and polish to a
small degree and I am thinking of investing in a high quality
lapidary model. Could you please share your experiences? In
particular, these Qs came to mind:
When I am prospecting, I see many river stones, all rounded and
polished to a degree by this natural tumbler. How far can the best of
tumblers go toward both criteria (1) rounding - can a tumbler
substitute for a bead machine; (2) polishing - can a tumbler
substitute for hand polishing?
BTW, when I worked in gold mining and milling in NWT we used huge
ball mills which are tumblers, but the purpose is grinding up the
ore. If you were to use round (hardened) steel balls in a lapidary
tumbler would it not produce spherical beads?