Specimens Walpurgite is a chemical oddball of a mineral. It is too rare to really be considered an ore of either uranium or bismuth, but no doubt some walpurgite has gone into the processing with other ores. Walpurgite specimens can have attractive tiny clusters of bladed radiating crystals. The mineral gets its name from the Walpurgis Vein at its type locality, Weisser Hirsh Mine, Schneeberg, Saxony , Germany. Remember, this is a radioactive mineral and should be stored away from other minerals that are affected by radioactivity and human exposure should always be limited.
Color is typically yellow but can be a reddish orange.
Luster is adamantine to greasy. Crystals are translucent to rarely transparent. Crystal System is trigonal. Crystal Habits include platy elongated crystals often aggregated and twinned . Also as crusts, fibrous and earthy.