Click on thumbnails for a larger image. Please be patient since some of these pages of thumbnail images take some time to load. These mineral photos are copyrighted by their owners and may not be used without permission.
Ronneburgite: K2MnV4O12
Comments: Reddish-brown crystals of ronneburgite on matrix. Location: Ronneburg U deposit, Gera district, Thuringia, Germany. Scale: Picture size 2 mm. © Thomas Witzke / Abraxas-Verlag