Browse Items (944 total) Browse All Browse by Tag Search Items of 95 Next Page Sort by: Title Creator Date Added Abalone Tags: Animals, Gastropods, Mollusks, Zoology Abalone Tags: Animals, Gastropods, Mollusks, Zoology Abalone (Most Beautiful) Tags: Animals, Gastropods, Guam, Mollusks, Oceania, United States, Zoology Actinolite Dark green mass of radiating columnal aggregates of actinolite crystals in a quartz matrix. Tags: California, Geology, North America, Rocks and Minerals, United States Actinolite One specimen of green, radiating, columnar, aggregate crystals of actinolite. Tags: Geology, Massachusetts, North America, Rocks and Minerals, United States Agate Small, cut and polished piece of a banded light to dark gray and light reddish-brown agate. Tags: Brown, Colorado, Geology, Gray, North America, Red, Rocks and Minerals, United States 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 of 95 Next Page Featured Item Diamond Rough diamond crystal, light brown in color.