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Geology Subjects 'Cave Bacon' / - Andorite with Zinkenite Andradite - Atacamite Atacamite on Chrysocolla - Barite crystals on Barite on Galena - Black Crater / Black Rock Lava - Calcite and Stibnite Calcite Crystals in - Cerussite Cerussite - Cinnabar Cinnabar - Conness Lakes / Cookie Cliff Rockslide - Cuprite, Tenorite and Cyanotrichite - Easy Chair Crater El Capitan Recessional - Erosion of alluvial Erosional features in - Fluorite and Siderite Fluorite on Calcite - Giant sandstone hoodoo Glacial Chatter Marks - Gold Gold - Gold Nugget from Gold Nuggets - Halemaumau Crater at Half Dome in - Heulandite Horseshoe Bend / - Landscape Arch / Large Transverse Dunes - Ludlamite on Pyrite Lukens Lake at - Minium Moenave Sandstone patterns - Native Copper Native Gold in - North Dome / North Dome / - Pararealgar in Ulexite Part of cored - Pyrargyrite Pyrargyrite with Stephanite - Quartz veining in Quartz with Hematite - Rhodochrosite with Fluorite Rhodochrosite with Fluorite - San Andreas Fault Sand Mountain Dune - Sheet Jointing and Sheet Jointing and - Soft-sediment Deformation in South Butte / - Stalagmites / Lehman Stalagmites with Corraloids - Superimposed Stream / Surface Ripples in - Thomsonite on Analcime Thomsonite on Basalt - Turret Arch Area U.S. Borax Boron - Volcanic Crater / Volcanic Crater/ Ubehebe - Wind Ripples at Witherite - Wind Ripples at