More than 4,000 naturally occurring minerals—inorganic solids that have a characteristic chemical composition and specific crystal structure—have been found on Earth. They are formed of simple ...

Even though emeralds and rubies are very different colors, they both have the same secret ingredient in their atomic ...

Mineralogy is the study of the chemistry, crystal structure and physical ... compositions and textures of rocks and minerals, and include a new electron microprobe equipped for submicron scale ...

Minerals underground may ... the team worked to develop structure–composition equations for common types of olivine with different chemical compositions. "Previous studies used 60 or fewer ...