Designed by
Title
Geology & Minerals - Geode Mineral Samples #24563792
Description
Geodes are geological structures which occur in sedimentary and volcanic rocks. Inside the outer chalcedony shell are minerals such as calcite, pyrite, kaolinite, sphalerite, millerite, barite, dolomite, amethyst, smithsonite and quartz. These cross-sections have been cut and polished.