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Pegmatite International
Information on the mineralogy and petrology of pegmatites including an online publication and links to pegmatite-related sites.
Silica-rich Volcanics of the Berkeley Hills, California
Describes the geology, petrology and geochemistry of the Northbrae and Leona Rhyolites in the East Bay Hills, San Francisco Bay Area, California.
Northwest Obsidian Research Lab
Offers a variety of analytical services related to obsidian trace element characterization ("sourcing") studies, obsidian hydration studies, and obsidian source studies, primarily in the context of archaeological research.
Greg Finn, Brock University
Page with links to course summaries for Petrology and Petrography, and related coursework.
Geokem
Online publication with brief descriptions of most types of terrestrial and lunar igneous rocks, their regional distribution and classification, and examples of their geochemical trends and "fingerprints".
MELTS Home Page
Melts is a software package for modeling crystallization of magmatic systems.
Granite: Monarch of the Continental Crust
Information on granite and its forms, and an exploration of the granite origin controversy written with a minimum of technical jargon.
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