Portal:Minerals/Did you know/8


 * ... that after a mine tunnel was dug near Cerro de Pasco, Peru, the first known specimen of pascoite (example pictured) formed on the walls?
 * ... that the name of mineral scrutinyite reflects the efforts spent to distinguish it from plattnerite – another form of lead dioxide?
 * ... that the crystal symmetry of melanophlogite changes depending on the guests trapped inside it?
 * ... that the mineral messelite was described in 1890, discredited in 1940, reinstated and named neomesselite in 1955, and named messelite once again by 1959?