• Barite with micro pyromorphite crystals

      Raines, Ed; Mines Museum of Earth Science
      Intergrowth of colorless blades of barite with a few scattered microcrystals of pyromorphite. Mineral specimen is from Bulldog mine, Bulldog vein, Creede mining district, Colorado.
    • Barite with quartz

      Raines, Ed; Mines Museum of Earth Science
      Off-white bladed crystals with minor iron oxide staining. Mineral specimen is from the Bulldog mine, Bulldog vein, Creede mining district, Colorado.
    • Cerussite

      Raines, Ed; Mines Museum of Earth Science
      Intergrowth of white, cyclically twinned crystals from the Bulldog mine, Bulldog vein, Creede mining district, Colorado.
    • Cerussite (jackstraw intergrowth)

      Raines, Ed; Mines Museum of Earth Science
      Cerussite intergrowth of white jackstraw crystals. Mineral specimen is from the Bulldog mine, Creede mining district, Colorado.
    • Chalcopyrite with sphalerite

      Raines, Ed; Mines Museum of Earth Science
      Dull, brassy chalcopyrite crystals on resinous brown to darker brown sphalerite. Some of the sphalerite exhibits twinning according to the spinel law, some of which has a polysynthetic habit. This mineral specimen is from the Creede mining district, Colorado.
    • Chalcopyrite with sphalerite

      Raines, Ed; Mines Museum of Earth Science
      Brassy chalcopyrite crystals on very dark brown to resinous brown sphalerite crystals. This mineral specimen is from the Bachelor mine, Amethyst vein system, Creede mining district, Colorado.
    • Galena

      Raines, Ed; Mines Museum of Earth Science
      Bright gray, partly skeletal crystal from the Bulldog mine, Bulldog vein, Creede mining district, Colorado.
    • Galena with very thin coating of hematite

      Raines, Ed; Mines Museum of Earth Science
      Grey crystals of galena with a thin reddish coating from the Amethyst mine, Amethyst vein, Creede mining district, Colorado.
    • Ktenasite coating chalcopyrite on sphalerite

      Raines, Ed; Mines Museum of Earth Science
      Ktenasite is a rare mineral. Some of the sphalerite exhibits twinning according to the spinel law, some of which has a polysynthetic habit. Mineral specimen is from the #5 level tunnel, Commodore mine, Amethyst vein, Creede mining district, Colorado.
    • Pyrite

      Raines, Ed; Mines Museum of Earth Science
      Mineral specimen represents one single pyritohedral crystal and is from the Creede mining district, Colorado.
    • Quartz, variety amethyst

      Raines, Ed; Mines Museum of Earth Science
      Quartz, variety amethyst from the Amethyst vein, Creede mining district, Colorado, forming a vug in amethyst vein material.
    • Quartz, variety amethyst on barite

      Raines, Ed; Mines Museum of Earth Science
      Light purple amethyst crystals covering and replacing barite. Mineral specimen is from the Bulldog mine, Bulldog vein, Creede mining district, Colorado.
    • Quartz, variety amethyst with quartz variety chalcedony; carved sowbelly agate sphere

      Raines, Ed; Mines Museum of Earth Science
      Polished sowbelly agate sphere (quartz variety amethyst with quartz variety chalcedony) from the Last Chance mine, amethyst vein, Creede mining district, Colorado.
    • Silver

      Raines, Ed; Mines Museum of Earth Science
      Branching arborescent growth of silver crystals from the Bulldog mine, Creede mining district, Colorado.
    • Silver (in jar)

      Raines, Ed; Mines Museum of Earth Science
      Jar of leaf/spangle silver from the Bulldog mine, Creede mining district, Colorado.
    • Silver (sawed) with barite

      Raines, Ed; Mines Museum of Earth Science
      A solid mass of native silver from the Bulldog mine, Creede mining district, Colorado.
    • Silver (wires)

      Raines, Ed; Mines Museum of Earth Science
      This mineral specimen is from the Creede mining district, Mineral County, Colorado, and shows a mass of silver wires with quartz.
    • Silver in chalcedony nodule, in banded chalcedony and amethyst ("sowbelly agate")

      Raines, Ed; Mines Museum of Earth Science
      Cut slab polished on both sides ; one of six slices cut from the same piece of “sowbelly”. Mineral specimen is from the Last Chance mine ("Chance cave", 700' level), Amethyst vein, Creede mining district, Colorado.
    • Silver minerals in petrified wood

      Raines, Ed; Mines Museum of Earth Science
      Mineral specimen is from the Monkeymeyer mine, Creede mining district, Colorado. Petrified wood found in the Monkeymeyer sandstone unit of the Creede formation contained sufficient silver mineralization to be ore. Mr. Monkeymeyer operated a small mine and the sandstone unit was named for him.
    • Silver wire

      Raines, Ed; Mines Museum of Earth Science
      Silver wire from the Bulldog mine, Bulldog vein (9360 level), Creede mining district, Colorado.