Crocoite is the mineral emblem of Tasmania. This particular chunk of lead chromate (PbCrO4) crystals is my Patenkind, Shaun. We've been friends since 2016 when I became Shaun's patron.

In a neat coincidence, crocoite is chemically identical to the pigment chrome yellow, which is the colour formerly used for the trains of the U-Bahn in Berlin, the city which both Shaun and I call home.

#crocoite #tasmanianGeology #crystal #leadChromate #chromeYellow #PbCrO4 #berlin #geology #geologyrocks