I'm looking for suggestions on labeling indivdual specimens. Currently, each rock in my collection wears a small square of black, cloth, 3M friction tape. It conforms well and sticks forever but is still easy to remove if needed with a firm tug. On that tape is a number written in permanent paint pen referring to a master list. It's worked well for a couple of years but I'm finding that, over time, rock dust begins to obscure the painted numbers, which while permanent, do get absorbed into the tape so they seem to be fading away.
What are you using to identify your minerals? Hand painted, numbered squares? Numbers just painted on? A different type of non-absorbent tape? Anybody have a suggestion?
Mike @ Higher Orbit Products