Browse Items (60 total) Tags: Tan Browse All Browse by Tag Search Items of 6 Next Page Sort by: Title Creator Date Added Egg, Elephant Bird Tags: Africa, Animals, Birds, Extinct, Madagascar, Shell, Tan, White, Zoology Caliche One specimen of caliche, a secondary deposit of calcium carbonate. Tags: Arizona, Geology, North America, Orange, Rocks and Minerals, Tan, United States, White Agate Collection of miscellaneous pebbles of tans, browns, and grays. Tags: Brown, Geology, Gray, Rocks and Minerals, Tan Agate Collection of miscellaneous pebbles of tans, browns, and grays. Tags: Brown, Geology, Gray, Rocks and Minerals, Tan Agate Collection of miscellaneous pebbles of tans, browns, and grays. Tags: Brown, Geology, Gray, Rocks and Minerals, Tan Agate Collection of miscellaneous pebbles of tans, browns, and grays. Tags: Brown, Geology, Gray, Rocks and Minerals, Tan Agate Collection of miscellaneous pebbles of tans, browns, and grays. Tags: Brown, Geology, Gray, Rocks and Minerals, Tan Bauxite Small tan polished bauxite made into a heart shape. Tags: Geology, Rocks and Minerals, Tan Fish Fish fossil on limestone slab. Tags: Animals, Bony Fish, Europe, Fish, Fossils, Geology, Germany, Tan Fish Oil shale. Tags: Animals, Black, Bony Fish, Brown, Cenozoic, Eocene, Fish, Fossils, Geology, North America, Paleogene, Tan, United States, Wyoming of 6 Next Page Featured Item Dinosaur Includes the 1st phalanx of 3rd metatarsal of right hind foot.