Quartz Record Keeper Work

MsAnon

Looking for online resources in working with quartz that have Record Keeper formations on them. Two found me, one is a double terminated with risen large RK's on both terminations. The other is an Isis/Spade quartz with a sunken RK on it's side.
Its hard to find much online so far. Many are carbon copy descriptions and used to just sell their own.
Have you ever worked with one? What did you find? What was your method? Second hand knowledge also utterly welcome.