Geology
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- Earth Science Week
- Earth science education event in October of each year. Web site features educational activities, geology questions and answers, and links to other geologic education resources.
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- Educational Activities in the Earth Sciences
- From Society for Sedimentary Geology. Indexed by subject matter and age range.
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- Environmental Problems in Karst Lands
- Brief review of the engineering and environmental concerns of occupying karst terrain, including mitigation measures.
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- Karst: The Stealthy Hazard
- Illustrated article (in Geotimes) discusses flooding, sinkhole collapse, infrastructure damage, and other impacts from development on karst lands in Kentucky.
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- Amethyst Galleries' Mineral Gallery
- Provides a searchable database of mineral and gemstone descriptions, images, and specimens.
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- Mindat
- Searchable mineral database with physical and chemical properties as well as locality information.
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- Mineral Spectroscopy
- Information about color in minerals and the spectroscopy of minerals (mineral absorption spectra).
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- Online Database of Luminescent Minerals
- Fluorescent minerals with spectral data and activators. Searches are possible on name, color, spectrum peaks, activators and famous localities.
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- Romanian Database of Raman Spectroscopy
- Database of a number of mineral species with a description of the crystal structure, sample image, number of sample, origin, Raman spectrum and vibrations, Raman discussion and references.
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- Indian Valley Mine and Gift Shop
- National Historic Site with a mine, gold panning, gift shop and museum located 20 miles south of Anchorage Alaska
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- Prospecting for Gold near Washington
- Detailed information on gold prospecting and gold mining in Virginia and Maryland, especially near Washington, DC.