Rock Tumblers Step-by-step guide to tumble-polishing rocks into gemstones.
Shale he rock that is quickly transforming the energy industry by yielding natural gas.
||Rocks on Mars
Rocks on Mars Many of the rocks found on Mars are not very different from Earth rocks.
Soapstone is a talc-rich rock with properties that make it suitable for a variety of projects.
Rock Kits Get a collection of sedimentary, metamorphic and igneous rocks.
||Coal Close Up
Coal Through a Microscope Coal is more than a black rock. It\'s THE most interesting rock.
Difficult Rocks Elementary students find lots of rocks that you will not be able to identify.
||Uses of Granite
Uses of Granite The rock used everywhere from the kitchen to the facing stone of skyscrapers.
Sliding Rocks on Racetrack Playa How they slide across a dry lake bed is a mystery.
A Grain of Sand Gallery of sand grains through a microscope by Dr. Gary Greenberg.
Mineral Show Photos From the 2010 Tucson Gem, Mineral & Fossil Show.
Sand is a diverse material. This gallery includes photos of sand from around the world.
Rock Art People have been producing rock art for thousands of years. A world-wide collection.
Spectacular Yosemite Rockfall A photo sequence of rockfall and debris avalanche by Herb Dunn.
Forensic Geology My students come to class thinking that dirt is dirt and sand is sand...
Carbonatite Lava Flows at Oldoinyo Lengai CO2-rich lavas that flow like motor oil.
Limestone A versatile rock used in cement, food, paint, paper, drugs, concrete & more!