A very unusual specimen with SHARP, euhedral, really gemmy green brochantite crystals in soft matrix of massive plancheite! This is a really rich, and I am told old, specimen. I have never seen such crystals from the locality myself, before this - and they are brochantite without a doubt. the plancheite pins the locale. It is not Moroccan, thus, or Arizona....a most unusual piece! and....very pretty!