Rock Tumblers Step-by-step guide to tumble-polishing rocks into gemstones.
Lapis Lazuli - a metamorphic rock and the most popular blue opaque gemstone in history.
Rock Kits Get a collection of sedimentary, metamorphic and igneous rocks.
Trap Rock is a named applied to any dark-colored igneous rock used to produce crushed stone.
|The Brewery Rock ?
The Rock Used to Make Beer - Geologists are beer experts and should know about this rock.
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.
Difficult Rocks Elementary students find lots of rocks that you will not be able to identify.
Shale The rock that is quickly transforming the energy industry.
Sand is a diverse material. This gallery includes photos of sand from around the world.
||Uses of Granite
Uses of Granite The rock used everywhere from the kitchen to the facing stone of skyscrapers.
Soapstone is a talc-rich rock with properties that make it suitable for a variety of projects.
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.
Crushed Stone - Four tons per person is used each year in the United States.
Carbonatite Lava Flows at Oldoinyo Lengai CO2-rich lavas that flow like motor oil.
||Rocks on Mars
Rocks on Mars Many of the rocks found on Mars are not very different from Earth rocks.
Forensic Geology My students come to class thinking that dirt is dirt and sand is sand...
Limestone A versatile rock used in cement, food, paint, paper, drugs, concrete & more!
|Coal Close Up
Coal Through a Microscope Coal is more than a black rock. It\'s THE most interesting rock.
||Azurite Granite ?
Azurite Granite? Found at the base of K2, the second highest mountain in the world.
What Are Pictographs? They are drawings or paintings on rocks made by people.