~ Early Web Links ~

Excalibur Mineral Corporation offers a detailed sales catalog of meteorites and tektites, listing specimens by name, find date, locality, weight, and price. The catalog includes rare pallasites, chondrites, and scientifically documented samples with SEM imagery and quantitative chemistry, making it a destination for serious collectors.

NAGS (Norske Amatørgeologers Sammenslutning) is the Norwegian association for amateur geologists, offering a comprehensive lexicon of Norwegian minerals, an index of articles from their geology magazine STEIN dating back to 1973, and listings of geology clubs across Norway. Visitors interested in rocks and minerals as a hobby will find this a rich hub for Norwegian earth science resources and community.

Amethyst Galleries' Mineral Gallery, self-proclaimed 'The First Internet Rock Shop,' is a comprehensive reference covering minerals, rocks, crystals, gemstones, and birthstones organized by chemical class and physical properties. With detailed explanations of mineralogy, crystal formation, and browsable indexes by name and category, it has been an authoritative online mineral encyclopedia since 1995.

The PALEOMAP Project, run by Christopher Scotese, is a comprehensive scientific resource illustrating the plate tectonic development of Earth's ocean basins and continents over the past 1.1 billion years. Visitors can explore full-color paleogeographic maps, interactive 3D PaleoGlobes, animations of ancient Earth configurations like Pangea, and download materials for geology education.

Steve Allen's detailed reference site on the history and technical implications of leap seconds, delta time, and precision time scales used in astronomy and timekeeping. It features plots, tables, historical data, and analysis of the ongoing ITU-R debate over whether to abandon leap seconds from UTC.

Professor of Geology Norman R. King documents the Pennsylvanian-age rock exposure uncovered during I-170 highway construction in St. Louis, Missouri, with detailed photographs and technical discussion of the Altamont Formation. This site is a niche academic resource for geology enthusiasts and paleontologists interested in Carboniferous stratigraphy and fossils from the American Midwest.

Hosted at Michigan Tech since 1993, this long-running volcano resource page gathers links to educational tools, research sites, webcams, and cultural materials related to volcanology from around the world. Visitors can explore active volcano feeds, teaching resources, folklore, myths, and interviews with real volcanologists, making it a rich hub for both students and enthusiasts.

Webmineral is a comprehensive mineralogy database created by David Barthelmy, cataloging 4,714 individual mineral species with detailed descriptions, crystal structure viewers, X-ray data, chemical formulas, and an extensive image library. Its interactive Java-powered crystal viewers, searchable indexes across dozens of physical and optical properties, and multi-language support make it an invaluable reference for geologists, collectors, and mineral enthusiasts alike.

The Fluorescent Mineral Society hosts a stunning photo gallery showcasing minerals from around the world photographed under shortwave, midwave, and longwave ultraviolet light, revealing their glowing colors. Specimens from famous localities like the Franklin and Sterling Hill mines in New Jersey, Tsumeb in Namibia, and sites across China, Australia, and Brazil are featured with photographer credits and mineral identification.

Fossils Facts and Finds is a comprehensive educational resource covering everything from fossil formation and identification to detailed pages on hundreds of specific species including trilobites, ammonites, dinosaurs, and megalodon. Aimed at kids, teachers, and homeschoolers, the site also spans the full geologic time scale, offers lesson plans, coloring pages, and even sells fossils and educational materials.