20122 Potassium

1 gram of potassium metal 99.8% pure in glass vial under mineral oil. The mineral oil prevents but doesn’t entirely stop the oxidization of the potassium metal, hence the purple hue.

ncat RB Gold, Ecuador

Labelled simply “Plateau Mining Co., Ecuador”, this specimen came from a collection acquired by Richard Bell. Obviously, Plateau Mining Co. isn’t a locality, but a company, so the starting point is simply Ecuador. After a...