These alphabetical listings include synonyms of accepted mineral names, pronunciation of that name, name origins, and locality information. Visit our expanded selection of mineral pictures.
Valid Species (Bold) - All Minerals that are IMA approved or were considered valid prior to 1959 are in bold type.
Pronunciation Icon - Sound file Courtesy Photo Atlas of Minerals.
Mineral Image Icon - Mineral image is present for this mineral. Click on Icon to view the image.
Mineral Image Gallery Icon - Multiple Images are present for this mineral. Click on Icon to view the image gallery.
jCrystal Form Icon - There is a Krystalshaper (jCrystal) form for this mineral. Click on Icon to view the Crystal Form Applet.
NEW - jPOWD Structure File from the American Mineralogist Crystal Structure Database is Present. Click on Icon to view the Crystal Structure Applet derived from the .cif files using jPOWD..
Calculated Radioactivity Hazard Icons Radiation Detectable with very sensitive instruments. API Gamma Ray Intensity < API 500 units. Radiation very mild. API Gamma Ray Intensity > 501 API units and < 10,000 API units. Radiation weak. API Gamma Ray Intensity > 10,001 API units and < 100,000 API units. Radiation strong. API Gamma Ray Intensity > 100,001 API units and < 1,000,000 API units. Radiation very strong. API Gamma Ray Intensity > 1,000,001 API units and < 10,000,000 API units. Radiation DANGEROUS. API Gamma Ray Intensity > 10,000,001 API units.