Description
TWO RHODOCHROSITES "Rhodochrosites" (or Mn bearing calcite): one specimen having druzy crytals on a botryoidal rhodochrosite which also shows concentric banding with sphalerite, Ouray Co., Colorado, USA, measuring 11 x 5 x 4 cm ; the second, a massive rhodochrosite with pyrite, Butte, Montana, USA, measuring 11 x 5 x...