This specimen hosts a very sharp, yellow crystal of the rare species londonite, perched on contrasting white matrix. The crystal atop is 2 cm across and complete all around the wonderful termination. It is translucent and sharp, with exceptional luster that we seldom see on these. It is most likely londonite primarily due to the luster, but all such crystals seem to be zoned as londonite/rhodizite, depending on which part of the crystal you analyze; in other words, each crystal contains zones of each species in the series, but this is likely londonite dominant due to the glassy luster. The red specks are bits of tourmaline, of the variety liddicoatite. This is old material from the 1990s and very early 2000s, not seen since.