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.