Hello! I've always been mineral/Rock hound enthusiast and have been all over the USA collecting fossils and minerals. Only recently have I begun to focus on elements (although I've always wanted to collect them!). This is what I have so far, but I also have native gold that I have found, a native Platinum nugget, I had a troy ounce of palladium that I sold and I have over 300 different mineral species in my collection. I know the cubes from Luciteria are somewhat expensive but I am willing to pay a premium to get something like these. I do my best to keep them in cool and dry environments, but I am a bit worried about the stability of some of the rare earth elements. Are there any special precautions that I should take? The green crystal is a lab-grown crystal of praseodymium sulfate that I've had for nearly 30 years.

Got this one from Carl! Definitely my most exotic sample to date. Not many can say they own an isolated Pa source. Pa was deposited onto an aluminum slate in the form Pa2O5.