This web site is maintained by John Winter of Whitman College, and is an on-line companion to a mineralogy course. The web site contains a course syllabus, PowerPoint presentations and an Excel tutorial. Topics included in the PowerPoint presentations include basic symmetry concepts, 2-D and 3-D translations, crystal properties, and optical mineralogy concepts. Each PowerPoint file can be downloaded ... Full description.

This site features Flash animations that illustrate various facets of the rock cycle. The visualizations depict rock-forming processes, such as erosion, transportation, deposition, cementation, crystallization, subduction, and eruption, that create sedimentary, igneous, and metamorphic rocks. They also show cooling environments that result in varied crystal sizes and demonstrate igneous rock classification. ... Full description.

This website contains geologic maps of Kentucky, with a discussion of geologic time in regards to the rocks, minerals, fossils, and economic deposits found there. There are also sections that describe strata and geologic structures beneath the surface (faults, basins, and arches), the structural processes (folding and faulting) that create stratigraphic units, the geomorphology of the state, geologic ... Full description.

This website provides photomicrographs of minerals and rocks in thin section. The images are subdivided into minerals, plutonic microtextures, volcanic microtextures, and metamorphic microtextures. Each photomicrograph is accompanied by sample information, a brief description, rock type and locality, plane polarized and cross polar views, and a link to other examples of the mineral or microtexture. ... Full description.