Pachnolite on Thomsenolite

Vugs in a Thomsenolite matrix are richly covered with prismatic Pachnolite crystals measuring to 3mm. The Pachnolite crystals are colourless to dark brown due to iron oxide coatings. Tiny clear elongate crystals have overgrown the larger Pachnolite crystals. Pseudo-cubic crystals of Thomsenolite are also visible. Accompanied by a label from The Mineralogical and Geological Museum of the University of Copenhagen.