|The Brewery Rock ?
The Rock Used to Make Beer - Geologists are beer experts and should know about this rock.
Dallol Volcano is one of the strangest landscapes on earth - at 269 feet below sea level.
Red Beryl is one of the rarest gems. Small amounts are mined at one locality in Utah.
|Great Rift Valley
The East Africa Rift System - The extensive fault system that is tearing Africa apart.
Mohs Hardness Scale is a set of reference minerals used for classroom hardness testing.
Hand Lens A 10-power folding magnifier in a metal case. A frequently used lab and field tool.
|US Diamond Mines
US Diamond Mines - Did you know that diamonds have been mined in the United States?
Meteorites - Rocks that were once parts of planets or large asteroids.
Rock Glaciers - Masses of rock, ice, snow, mud and water that slowly flow down slope.
Gem Silica is a blue chalcedony colored by copper. It is the rarest and most valuable chalcedony.
Hardness Picks - Mohs hardness testing with precise and easy-to-use hardness picks.
Gemstones - Colorful images and articles about diamonds and colored stones.
Field Camps - Over 80 field courses for undergraduate geology students.
||Sea Level Rise Maps
Sea Level Rise Maps - See what will be flooded as sea level rises.
||What are Glaciers?
What are Glaciers? Learn how glaciers form, flow, advance, retreat, and change over time.
Teacher Resources - K-12 resources for teaching about earth science.
Soapstone is a metamorphic rock with properties that make it suitable for a variety of projects.
Volcanic Explosivity - Rating volcanic eruptions based upon the volume of tephra ejected.
Hydraulic Fracturing - Increases well yield by fracturing the reservoir rock with fluid injection.
Labradorite is a feldspar mineral that sometimes exhibits an iridescent play-of-colors
Granite - The intrusive igneous rock that underlies continents and countertops.
|Coal Close Up
Coal Through a Microscope - Coal is more than a black rock. It is THE most interesting rock.
Ilmenite - The primary ore of titanium and source of most titanium dioxide.
Fluorescent Minerals and rocks glow with spectacular colors under ultraviolet light.
Mineraloids are amorphous naturally-occurring inorganic solids that lack crystallinity.
Rhodonite - a manganese silicate used as a minor ore of manganese and as a gemstone.
||What Is The Moho?
What Is The Moho? Learn about the Mohorovicic Discontinuity - the mantle/crust boundary.
|What is a Maar?
What is a Maar? The second most common volcanic landscape feature on Earth.
Tallest Mountain - Everest has rivals in tallness, altitude and distance to the center of Earth.
Triboluminescence is a flash produced when a mineral is rubbed, scratched or broken.
Canadian Diamond Mines produce some of the largest and highest quality gems!
Rocks - Galleries of igneous, sedimentary and metamorphic rock photos with descriptions.
||Oil Fields from Space
Oil Fields from Space - Night views of Earth show the distribution of oil field activity.
Methane Hydrate deposits contain more fuel value than all other fossil fuels combined.
Expansive Soil Causes more damage than floods, hurricanes & tornadoes combined.
Azurite - Used as an ore of copper, a pigment, ornamental stone and gem material.
Wall Maps - Wall maps of the world, continents, states and the USA.
Mount Cleveland is an active volcano in the Aleutian Islands and a threat to air traffic.
Fire Opal is a transparent to translucent opal with a yellow, orange or red background color.
The Richest Meteorite Field - More meteorites found here than anywhere else on Earth.
Mineral Rights Who owns the minerals under your land? Who wants to buy them?
Olivine Rain? Spitzer Telescope discovered a rain of olivine crystals on protostar HOPS-68.
Rhyolite An extrusive igneous rock with a high silica content, produced from granitic magma.
Chatoyant Gems look like the eye of a cat. A line of light moves across the surface of the stone.
||Types Of Eruptions
Types of Volcanic Eruptions - A description of the most common eruption types.
Horizontal Drilling has opened new resources and significantly improved productivity.
Frac Sand - The amount of frac sand produced in the USA is up by over 300% since 2009.
Rock Art - People have been marking on rocks for thousands of years.
|Uses of Marble
The Uses of Marble are numerous and diverse. You will be surprised by how it is used.
Largest Volcano - That title is shared by Tamu Massif, Mauna Kea and Ojos del Salado.
||UV Mineral Lamp
Portable UV Lamp - short / long wave for fluorescent minerals. Safety glasses included.
|What is a Geyser?
Photos of Geysers from around the world with information about height, eruption interval, more.
Hematite - The most important ore of iron. A source of mineral pigment since prehistory.
Salt Domes - Salt structures that are often associated with oil and natural gas.
|What is LNG?
What is LNG? The use of LNG as an energy source is growing rapidly. Learn more about LNG.
Crushed Stone - About four tons per person is used each year in the United States.
||What is Geology?
What is Geology? - The study of Earth materials, structures, processes and life over time.
Plate Tectonics - Articles, maps, information about plate tectonics and the interior of Earth.
Beryl - the gem mineral of emerald, aquamarine, red beryl, morganite and heliodor.
Chalcopyrite - The most important ore of copper for over five thousand years.
Rock Bags - Durable field bags with pockets for carrying maps, books, specimens and tools.
Serpentine - metamorphic rocks used in construction, architecture and lapidary work.
Meteorite Identification Step one in identifying a possible meteorite is the magnet test.
Lapis Lazuli - a metamorphic rock and the most popular blue opaque gemstone in history.
||Arctic Seafloor Map
Arctic Ocean Seafloor Map The ridges, basins, shelves and rifts defining the Arctic seafloor.
Wrong Volcano! The most powerful eruption of the 20th century was misidentified?
Azurite Granite ? A white granite with blue orbs of azurite. A new material from Pakistan.
Blue Flames and the largest highly acidic lake in the world at Kawah Ijen Volcano.
||Fee Mining Sites
Fee Mining sites are mines that you can enter, pay a fee, and keep anything that you find.
Quartzite is metamorphic rock formed when sandstone is subjected to heat and pressure.
Rock Kits for classroom and personal study. A great way to learn about rocks.
California Earthquake Maps A collection of isoseismal maps for earthquakes in California.
|Life on Europa ?
Life on Europa might exist in a salty ocean a short distance below its frozen surface.
Geology Tools - Rock hammers, field bags, hand lenses, maps, hardness picks, gold pans.
Peridotite is a chromite host rock, a source of diamonds and a possible carbon dioxide sink.
|San Andreas Fault Map
Google Map of the San Andreas Fault Zoom in to see the fault trace on satellite images.
||Lightning Strikes Map
Lightning Strikes Map - A NASA map showing the worldwide distribution of lightning activity.
||What Is Earth Science?
What Is Earth Science? The study of Earth and its neighbors in space. Learn more!
Sliding Rocks Mystery - What causes these rocks to slide across a playa in Death Valley?
Diamond Misconception - Lots of people think that diamonds form from coal. Not True!
||Cave of the Hands
Cave of the Hands is a cave where ancient people painted hands about 9000 years ago.
Ammolite is a fossil and a gemstone. It is shell material from fossil ammonites.
||Uses of Gold
The Many Uses of Gold - Unique properties make gold one of the most useful metals.
||Google Earth - Free
Free Google Earth software allows you to browse seamless world satellite images. Free.
|Rocks on Mars
Rocks on Mars - Many of the rocks found on Mars are not very different from Earth rocks.
Sand is a diverse material. This gallery includes photos of sand from around the world.
||USA Landslide Map
Landslide Incidence Map - A USGS map showing landslide incidence in the United States.
Bear Attacks - Knowing how to react to a bear encounter or attack could save your life.
Mount Etna - The most active volcano in Europe continues an eruption that started in 2001.
||Asteroid Impact Map
Asteroid Impact Map - Explore fifty of the most obvious asteroid impact craters on Earth.
Astronomy - Fantastic images and articles about solar system and deep-space astronomy.
Volcanoes - Articles about volcanoes, volcanic hazards and eruptions past and present.
||Oil and Gas
Oil and Gas - Articles about oil and natural gas in the US and around the world.
Fossils - Learn about fossils and discoveries around the world.
Diamonds - Learn about the properties of diamond, its many uses and diamond discoveries.
Homeowners Insurance usually does not cover the most common geologic hazards.
|Rare Earth Elements
Rare Earths - Special materials used in electronics, defense, medical & many other products.
||Land Below Sea Level
Land Below Sea Level - Did you know that dozens of land locations are below sea level?
||Facts About Copper
Facts About Copper - Information about copper uses, production, resources and more.
Sunstone is a gem feldspar with aventurescence caused by light reflecting from platy inclusions.
||San Andreas Fault
The San Andreas Fault - A feature that separates the Pacific and North American Plates.
Dowsing is a method used to find underground water that is rejected by most geologists.
Minerals - Descriptions, photos, articles, properties and uses for common minerals.
100+ Gems - Photos of over 100 beautiful gems ranging from the popular to the obscure.
Turquoise - A bluish-green gem material that has been used for over 6000 years.
|Ruby and Sapphire
Ruby and Sapphire are the 2nd and 3rd most popular colored stones in the United States.
Mount Vesuvius - geology, history, maps, facts and more about the Vesuvius eruptions.
||Crater of Diamonds
Crater of Diamonds - The only diamond mine in the world where you can be the miner.
Shale - The rock that has quickly transformed the oil and gas industry.
Pictures of Opal - A collection of different types of opal from all around the world and Mars too!
Obsidian - the volcanic rock that cools so quickly that it becomes a natural glass.
Emerald is the most popular green gemstone in the United States and most of the world.
Tanzanite was unknown until a few decades ago but it has erupted into wide popularity.
||Gems from Space
Extraterrestrial Gems - A number of materials from space are used as attractive gems.
|Watch out for Ticks!
Ticks are a problem for geologists in some areas. Learn to recognize and avoid them.
||The Acid Test
The Acid Test - Geologists use dilute hydrochloric acid to identify carbonate minerals.
Petrified Wood is a fossil that forms when dissolved material preciptates and replaces wood.
Largest Earthquake ever recorded - Magnitude 9.5. Chile, 1960.
Largest Desert - The Sahara is huge but two polar deserts are larger.
Corundum is the third hardest mineral. It is also the mineral of ruby and sapphire.
Garnet is best known as a red gemstone. It occurs in any color and has many industrial uses.
Tallest Tsunami - A wave with a run-up height of 1720 feet occurred in Lituya Bay, Alaska.
||Huge Diamond Deposit
The Largest Diamond Deposit in the world could be under Popigai Crater in Russia.