pascoite
... that after a mine tunnel was dug near Cerro de Pasco, Peru, the first known specimen of pascoite formed on the walls?
... that after a mine tunnel was dug near <a href="./Cerro_de_Pasco" id="mwCOE" rel="mw:WikiLink" title="Cerro de Pasco">Cerro de Pasco</a>, Peru, the first known specimen of <b id="mwCOI"><a href="./Pascoite" id="mwCOM" rel="mw:WikiLink" title="Pascoite">pascoite</a></b> <i id="mwCOQ">(example pictured)</i> formed on the walls?