~ Early Web Links ~

Rocks and Minerals 4U is a comprehensive educational resource covering geology topics including rock formation, mineral identification, plate tectonics, and the rock cycle, with dedicated pages for igneous, metamorphic, and sedimentary rocks. Designed for collectors, students, homeschoolers, and teachers, the site offers lesson plans, crossword puzzles, photo galleries, and even a shop for rock and mineral specimens.

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.

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.

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.

Webmineral.com presents a comprehensive reference for the Nickel-Strunz Classification System, organizing over 4,700 minerals into a systematic hierarchy of chemical groups from elements and sulfides to silicates and organic compounds. Built with contributions from mineralogist James A. Ferraiolo whose classification scholarship dates to 1982, the site serves as a serious database tool for mineralogists, crystallographers, and collectors.

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.

Wasser-Wissen is a German-language internet portal dedicated to water and wastewater topics, featuring an A-Z encyclopedia, news, link directories, legal references, and resources on water management and environmental systems. The site covers everything from chemical elements relevant to water chemistry to sewage treatment plants, court rulings, dissertations, and international water management organizations.

Geologyshop is a comprehensive geological reference hub offering curated links to over 1200 worldwide geology websites organized by subject, covering topics from dinosaurs and volcanoes to chalk formations and channel tunnel geology. Visitors can access free geological documents, maps, field guides, and educational content for students, teachers, and professionals interested in earth sciences.

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.