Actually I planned to set this specimen "just as Prehnite" in this current auction. On closer inspection with magnification I noticed, that this is a REAL KILLER PIECE OF A RARE SPECIES!!! The whole specimen is covered with dark olive green,- glassy, radial RARE Pumpellyite-(Mg),- and not just as pustules and crusts as usual for such rarities,- they are very good visible to the naked eye. They are accompanied by light gray spheroidal Prehnite and multifaced, glassy and gemmy Calcite. SUPERB and RARE.