Indiana University
Indiana University: Anhydrite and Gypsum: Indiana's Evaporite Minerals [Pdf]
A fact card describing the physical and chemical characteristics of anhydrite and gypsum, where they can be found in Indiana, what they are used for, their chemical structures, and where they fit on Mohs hardness scale.
Indiana University
Indiana Univ. Bloomington: Geo Notes: Bryozoa: "Moss Animals" of the Sea [Pdf]
Presents some facts about bryozoans, an aquatic animal with many species both fossilized and living. Their important role in geologic research is emphasized.
Indiana University
Indiana Univ. Bloomington:geo Notes: Conodonts: Microfossils of Distinction [Pdf]
Presents some facts about conodonts, extinct eel-like animals whose fossils have been found in Indiana's marine sedimentary rocks. Their important role in geologic research is also discussed.
Indiana University
Indiana Univ. Bloomington: Geo Notes: Crinoids: Ancient Versus Modern Forms [Pdf]
Presents some facts about crinoids, a marine animal abundant during the Paleozoic Era, with many fossil species present in Indiana. This animal can still be found in the Caribbean Sea today.
Indiana University
Indiana Univ. Bloomington: Geo Notes: Brachiopods: Easy to Find Fossils [Pdf]
Presents some facts about brachiopods, a fossil that is common in Indiana rocks.
Indiana University
Indiana University Bloomington: Geo Notes: Glacial Erratics: Marker Rocks [Pdf]
Describes erratics found in Indiana that were deposited there through the process of glaciation.