A selection of UK minerals. Top left: hydrokenoelsmoreite-6R with wolframite and quartz from the Hemerdon (Drakelands) mine, Devon. Field of view ∼8 mm across. (See Mills et al., this issue). Right: bettertonite (white) from Penberthy Croft mine, Cornwall on quartz (white, translucent), with associated chamosite (green) and arsenopyrite (steel grey). Field of view ∼4 mm across (see Grey et al., this issue and 2015 [Mineralogical Magazine, 79(7), 1849–1858]). Bottom left: white crusts of penberthycroftite from Penberthy Croft mine, Cornwall. Field of view ∼1.7 cm across. See Grey et al., this issue.