Beautiful stones -- Many types of crystals -- Making crystals -- Gem crystals -- Different kinds of gems -- Gems from rocks -- Organic gems -- Hunting and mining gems -- Finishing rough -- Learning about gems.
Summary:
Learn about different types of crystals and gems, and the ways that they are formed.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.