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Science, engineering, and mathematics — biology, chemistry, physics, astronomy, earth sciences, social sciences, and technology research. A curated gateway to academic and professional scientific resources.
57129 resources
A gem identification chart.
Analyzes Burma ruby and sapphire gems and collector gemstone markets.
Gemstone primer with photos and vital information regarding gemstones.
Gem and Mineral class at the University of Texas, Austin.
Mineral and gemstone galleries. Physical properties and historical facts for minerals and gemstones.
A new gem book by R. W. Wise.
Gem and mineral site from Sweden.
Software for the professional gemologist or gemology student/enthusiast.
Introduction to collecting and investing in gemstones and colored diamonds, with descriptions of the types most widely traded.
Dominican rough blue amber for jewellers and collectors.
An on-line gem and jewelry course at UC Berkeley.
Pictures and short descriptions of gems and minerals on display at the Smithsonian.
A collection of images and other information about gemstones, collector stones and the minerals with which they are associated.