WE MAKE CUSTOM ROCK KITS FOR TEACHERS, AND HOME SCHOOLERS Tell me what you are looking for, and I would be happy to put together a one of a kind rock, and mineral kit.  These are perfect classroom, hands on exibits. Holding these specimens really show how amazing Earth Sciences are. Here are a few ideas for your kits:  Fossils, we have brachipods, trilobites, corals, petrified sharks teeth, petrified wood, or amber     Quartz (SiO2), for this kit we have quartz crystals, chalcedony formations, agates, including fire agate, jasper, and due to availability chert, and flint Geodes, we have geodes from around the world, crystal filled amygdules, agate geodes, and septarian nodules  We can add gold nuggets to any kit as well as turquoise, malachite, peridot, garnet, sapphire, topaz, aragonite, calcite, or almost any mineral mined in North America just call me, and let me know what you need. Craig Wiita 760-424-6504 ,or wiitas@aol.com
Chalcedony formations, various shapes, and colors	Many sizes, species of petrified sharks teeth
Geodes in lots of shapes, and sizes	Check out a sample of the Opal Hill Mine show  @ http://www.youtube.com/watch?v=VdBaiGJpOnM
You can add fire agate to any kit, this is truly an amazing mineral	No fossil kit, or collection is complete without a trilobite, or two