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Geology Subjects 'Cave Bacon' / - Andorite with Zinkenite Andradite - Atacamite Atacamite on Chrysocolla - Barite crystals on Barite on Galena - Boiling Hot Springs Boiling Mudpot at - Calcite on Marcasite Calcite var. Manganoan - Cerussite Cerussite - Clastic Dikes in Cliff Ridge / - Copper pseudomorph after Coral head uplifted - Death Valley Salt Death Valley Salt - Elbaite Elbaite Crystals on - Fall River, Rocky Fault Scarps in - Fluorite with Sphalerite Fluorrite on Quartz - Glacial Moraines at Glacial Moraines at - Gold Gold - Gold on Quartz Gold on Quartz - Havasu Creek / Hedenbergite - Inyoite with Meyerhofferite Iron Meteorite - Lava Flow / Lava Flow / - Malachite with Azurite Malachite with Azurite - Mosaic Canyon / Mosaic Canyon / - Native Silver in Native Sulfur - Orpiment Orpiment - Phenakite Phenakite - Pyrite on Quartz Pyrite on Quartz - Rhodochrosite Rhodochrosite - Rhyolite Dome in Ripple Marks in - Scheelite Scheelite crystals on - Silver in Calcite Silver Strand Falls - Sphalerite on Quartz Sphalerite var. Schalenblende - Stibnite on Barite Stibnite with Calcite. - Tafoni Weathering in Talus pile of - Topaz Topaz on Microcline - Vanadinite on Hollandite Variscite - Volcanic Vents on Volcano erupting, Hawaii - Zincite, Franklinite and Zircon - Zincite, Franklinite and