Curated OER
Crystals & Fossils
In this earth science activity, students identify and locate vocabulary terms related to crystals and fossils. There are 32 words located in the puzzle.
University of Kentucky
University of Kentucky: Kentucky Agate
Has information on agate which is Kentucky's official state rock. There are links to different close-up pictures of Kentucky agate.
University of Kentucky
University of Kentucky: Rocks and Minerals: Sedimentary Rocks
An excellent resource for learning about sedimentary rocks and how they form. The different types of sedimentary rocks and deposits found in Kentucky are listed, with links to dedicated pages for each. Covers clay, shale, sandstone,...
Other
Rockhound Arkansas: Quartz as Gems
This article discusses different varieties of quartz that are used as gemstones. A general description of each is given, including its historical background and physical makeup. This page is part of an excellent, detailed website about...
CK-12 Foundation
Ck 12: Earth Science: Types of Fossilization
[Free Registration/Login may be required to access all resource tools.] Five methods that create fossils.
Curated OER
National Park Service: Agate Fossil Beds: Geologic Formations
This National Park Service site has information about these fossil beds in Nebraska and where the name Agate came from.
Other
Gem Hut: Agate (Chalcedony) Gemstones
Contains general information on agate, including links to information about various varieties. Commercial site, good for pictures of varieties of agate.
Jewelry Central
Jewelry Central: Agate
A commercial site that contains a brief paragraph about agates and photographs of some varieties.
Other
Icga: Agate, Stripe Up the Bands
An interesting, brief discussion of the gem and mineral agate, including its physical properties and historical uses.
Other
Bob's Rock Shop: Rock & Gem: Agates From the Land of Pumas and Craters
An article about hunting agate in Argentina, from Rock & Gem magazine.