~ Early Web Links ~

Webmineral presents a comprehensive classification of mineral species based on Dana's New Mineralogy, organizing over 78 mineral classes from Native Elements to Unclassified Silicates. This detailed reference resource covers the full spectrum of mineralogy including sulfides, oxides, halides, carbonates, and silicates, making it an invaluable tool for geologists, mineralogists, and earth science enthusiasts.

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.

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.

Le Regne Mineral is a French bimonthly mineralogy magazine covering earth sciences with original articles and high-quality mineral photography from renowned specialists like Jeff Scovil and Mick Cooper. Considered one of the top five mineral magazines in the world after four years of publication, it serves collectors, rockhounds, and mineralogy enthusiasts across Europe and beyond.

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.

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.

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.

An educational exhibit from the Illinois State Museum exploring the famous Mazon Creek fossil deposits, dating back approximately 300 million years to the Pennsylvanian Period. Visitors can browse detailed pages on specific plant and animal fossils found in ironstone concretions, learn about the Francis Creek Shale formation, and explore why this site is considered one of the world's premier Lagerstätten.

Mineralienatlas is a comprehensive German-language encyclopedia and community platform covering mineralogy, geology, paleontology, and mining, supported by thousands of members worldwide. Visitors can search minerals by chemical properties, browse fossil and mineral portraits, explore collecting locations, and dive into crystallography and systematic mineralogy.

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.