How to grow green potassium ferrioxalate crystals from iron rust
I have so many questions.<p>How hard are they?  Are they fragile?<p>Many of them suffer from desiccation and I wonder if they can be "sealed" in some manner.  Or if the UV-sensitive crystals can be protected by some kind of coating.<p>It would also be interesting to see what would happen using the crystals grown in one solution as seeds in a chemically different solution.  The right sequence might not be reactive, but you could layer them ...