I'm trying to "clean up" some pleistocene sea shells I recently collected and
could use some advice. They are encrusted in a very hard cement like matrix
that I can't seem to remove without damaging the specimen itself. Does this
require dental tools? Is there an easier way? BTW, where does one get dental
tools? Can I get them mail-order?
Any help, encouragement/discouragement, would be greatly appreciated!
Regards,
Greg