Fossil rocks & minerals
Fossils are preserved remains or traces of ancient life — bones, shells, plants, footprints, even microscopic algae — usually replaced by silica, calcite, or pyrite over geologic time.
Showing 121–151 of 151 fossils (page 2 of 2).
Shark Teethcommonfossil · Mohs 3-5black, brown, gray
Silicified Agatecommonfossil · Mohs 6.5-7multicolored, white, gray
Silicified Algaecommonfossil · Mohs 6.5-7tan, brown, gray- No imageSilicified Conodontsuncommonfossil · Mohs 7amber, brown, white
Silicified Coralcommonfossil · Mohs 6.5-7white, gray, brown- No imageSilicified Cycad Wooduncommonfossil · Mohs 6.5-7brown, tan, white
Silicified Dinosaur Boneuncommonfossil · Mohs 6.5-7red, brown, black
Silicified Fernscommonfossil · Mohs 6.5-7brown, black, gray
Silicified Fossilscommonfossil · Mohs 6.5-7brown, red, yellow
Silicified Lignitecommonfossil · Mohs 6.5-7brown, black, gray
Silicified Mastodon Tusksrarefossil · Mohs 6.5-7white, cream, tan
Silicified Oolitecommonfossil · Mohs 6.5-7white, gray, brown
Silicified Palm Woodcommonfossil · Mohs 6.5-7brown, tan, black
Silicified Pine Conesuncommonfossil · Mohs 6.5-7brown, tan, gray
Silicified Woodcommonfossil · Mohs 6.5-7brown, red, yellow
Sponge Fossilcommonfossil · Mohs 2.5-7gray, white, tan
Spongescommonfossil · Mohs 3-5white, gray, brown
Starfish Fossiluncommonfossilgray, brown, tan
Stony Meteoriterarefossil · Mohs 5-7gray, brown, black
Stony-Iron Meteoriterarefossil · Mohs 5-6brown, metallic, yellow
Stromatoporioidscommonfossil · Mohs 3-5tan, brown, gray
Tabulate Coralcommonfossil · Mohs 5-7tan, brown, gray
Tektitesuncommonfossil · Mohs 5.5-6.5black, brown, olive green
Teredo Petrified Woodcommonfossil · Mohs 6.5-7brown, tan, gray
Trilobite Fossilscommonfossil · Mohs 3-5black, brown, gray
Trilobitescommonfossilbrown, gray, black
Tubulitecommonfossil · Mohs 3-4gray, brown, white
Turritella Agatecommonfossil · Mohs 6.5-7brown, tan, gray
Vertebrate Fossilscommonfossil · Mohs 3-6brown, tan, black
Wood Opalcommonfossil · Mohs 5.5-6.5brown, tan, gray
Yowah Nutuncommonfossil · Mohs 5.5-6.5brown, red, green
Identify fossils in the field
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