Common examples include: diamond, fluorine, fluorite, magnetite, pyrite Read more.

Common examples include: spessartine Read more.

Common examples include: emerald, galena, quartz, hanksite, vanadinite Read more.

Common examples include: apophyllite, olivine, garnet Read more.

Common examples include: gypsum, quartz, plagioclase, staurolite Read more.

Common examples include: garnet, pyrite Read more.

Common examples include: fluorite, pyrite, galena, halite Read more.

Common examples include: hedenbergite, quartz Read more.

Common examples include: agate (and other chalcedony) Read more.

Common examples include: limonite, turquoise, cinnabar, quartz, realgar, lazurite Read more.