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Tanzanitetanzanite Tanzanite was unknown until a few decades ago but it has erupted into wide popularity. San Andreas FaultSan Andreas Fault The San Andreas Fault - A feature that separates the Pacific and North American Plates. Asteroid Impact MapAsteroid Impact Map Asteroid Impact Map - Explore fifty of the most obvious asteroid impact craters on Earth.
Sliding RocksSliding Rocks Sliding Rocks Mystery - What causes these rocks to slide across a playa in Death Valley? Crater of DiamondsCrater of Diamonds Crater of Diamonds - The only diamond mine in the world where you can be the miner. Geology of GemsGeology of Gems Geology of Gems - The first comprehensive book on the geology of gem deposits.
What Is Earth Science?What Is Earth Science? What Is Earth Science? The study of Earth and its neighbors in space. Learn more! TurquoiseTurquoise Turquoise - A bluish-green gem material that has been used for over 6000 years. Facts About CopperCopper Facts About Copper - Information about copper uses, production, resources and more.
Geology ToolsGeology Tools Geology Tools - Rock hammers, field bags, hand lenses, maps, hardness picks, gold pans. Sea Level Rise MapsSea Level Rise Maps Sea Level Rise Maps - See what will be flooded as sea level rises. Mount VesuviusMount Vesuvius Mount Vesuvius - geology, history, maps, facts and more about the Vesuvius eruptions.
Abandoned MinesAbandoned Mines Abandoned Mine accidents take 20 to 30 lives per year. Many can be prevented with education. Lightning Strikes MapLightning Strikes Map Lightning Strikes Map - A NASA map showing the worldwide distribution of lightning activity. Wall MapsWall Maps Wall Maps - Wall maps of the world, continents, states and the USA.
Earthquake MapsCalifornia Earthquake Maps California Earthquake Maps A collection of isoseismal maps for earthquakes in California. Cave of the HandsCave of the Hands Cave of the Hands is a cave where ancient people painted hands about 9000 years ago. EmeraldEmerald Emerald is the most popular green gemstone in the United States and most of the world.
Tallest TsunamiTallest Tsunami Tallest Tsunami - A wave with a run-up height of 1720 feet occurred in Lituya Bay, Alaska. Mount ClevelandMount Cleveland Mount Cleveland is an active volcano in the Aleutian Islands and a threat to air traffic. Mount EtnaMount Etna Mount Etna - The most active volcano in Europe continues an eruption that started in 2001.
Homeowners InsuranceHomeowners Insurance Homeowners Insurance usually does not cover the most common geologic hazards. UV Mineral LampUV Mineral Lamp Portable UV Lamp - short / long wave for fluorescent minerals. Safety glasses included. PeridotitePeridotite Peridotite is a chromite host rock, a source of diamonds and a possible carbon dioxide sink.
Great Rift ValleyGreat Rift Valley The East Africa Rift System - The extensive fault system that is tearing Africa apart. GarnetGarnet Garnet is best known as a red gemstone. It occurs in any color and has many industrial uses. MisconceptionDiamonds from Coal Diamond Misconception - Lots of people think that diamonds form from coal. Not True!
Quartzitequartzite Quartzite is metamorphic rock formed when sandstone is subjected to heat and pressure. ObsidianObsidian Obsidian - the volcanic rock that cools so quickly that it becomes a natural glass. ChalcopyriteChalcopyrite Chalcopyrite - The most important ore of copper for over five thousand years.
Blue FlamesBlue Flames Blue Flames and the largest highly acidic lake in the world at Kawah Ijen Volcano. Uses of GoldUses of Gold The Many Uses of Gold - Unique properties make gold one of the most useful metals. Gfeller LeatherGfeller Leather Cases Gfeller Leather field cases, hammer holsters, lanyards, field belts, acid bottle cases, more.
Pavlof VolcanoPavlof Volcano Pavlof Volcano is one of the most active volcanoes in North America and a threat to air traffic. Dowsingdowsing Dowsing is a method used to find underground water that is rejected by most geologists. SunstoneSunstone Sunstone is a gem feldspar with aventurescence caused by light reflecting from platy inclusions.
Lapis LazuliLapis Lazuli Lapis Lazuli - a metamorphic rock and the most popular blue opaque gemstone in history. The Brewery Rock ?diatomite The Rock Used to Make Beer - Geologists are beer experts and should know about this rock. Arctic Seafloor MapArctic Ocean Seafloor Map Arctic Ocean Seafloor Map The ridges, basins, shelves and rifts defining the Arctic seafloor.
Bear AttacksBear Attacks Bear Attacks - Knowing how to react to a bear encounter or attack could save your life. USA Landslide MapLandslides Landslide Incidence Map - A USGS map showing landslide incidence in the United States. Gems from SpaceGems from Space Extraterrestrial Gems - A number of materials from space are used as attractive gems.
Gold PansGold Pans Gold Pans and Panning Kits - classifiers, snuffer bottles. Pans sized for kids to Goliath. Watch out for Ticks!ticks Ticks are a problem for geologists in some areas. Learn to recognize and avoid them. SandSand Sand is a diverse material. This gallery includes photos of sand from around the world.
Bear MapBear Map Range of Bear Species - Where you might encounter different types of bears. Identifying MeteoritesMeteorite Identification Meteorite Identification Step one in identifying a possible meteorite is the magnet test. Rock KitsRock Kits Rock Kits for classroom and personal study. A great way to learn about rocks.
Rock BagsRock Bags Rock Bags - Durable field bags with pockets for carrying maps, books, specimens and tools. GemstonesGemstones Gemstones - Colorful images and articles about diamonds and colored stones. ShaleShale Shale - The rock that has quickly transformed the oil and gas industry.
Volcanic ExplosivityVolcanic Explosivity Volcanic Explosivity - Rating volcanic eruptions based upon the volume of tephra ejected. CorundumCorundum Corundum is the third hardest mineral. It is also the mineral of ruby and sapphire. Rocks on MarsRocks on Mars Rocks on Mars - Many of the rocks found on Mars are not very different from Earth rocks.
Teacher ResourcesTeacher Resources Teacher Resources - K-12 resources for teaching about earth science. Petrified WoodPetrified Wood Petrified Wood is a fossil that forms when dissolved material preciptates and replaces wood. The Acid TestThe Acid Test The Acid Test - Geologists use dilute hydrochloric acid to identify carbonate minerals.
GraniteGranite Granite - The intrusive igneous rock that underlies continents and countertops. What Is The Moho?What Is The Moho? What Is The Moho? Learn about the Mohorovicic Discontinuity - the mantle/crust boundary. Fluorescent MineralsFluorescent Minerals Fluorescent Minerals and rocks glow with spectacular colors under ultraviolet light.
Mineral HardnessMohs Hardness Test Mohs Hardness Scale is a set of reference minerals used for classroom hardness testing. Gem SilicaGem Silica Gem Silica is a blue chalcedony colored by copper. It is the rarest and most valuable chalcedony. Huge Diamond DepositPopigai Diamonds The Largest Diamond Deposit in the world could be under Popigai Crater in Russia.
US Diamond MinesUS Diamond Mines US Diamond Mines - Did you know that diamonds have been mined in the United States? Rock GlaciersRock Glaciers Rock Glaciers - Masses of rock, ice, snow, mud and water that slowly flow down slope. Dallol VolcanoDallol Volcano Dallol Volcano is one of the strangest landscapes on earth - at 269 feet below sea level.
MeteoritesMeteorites Meteorites - Rocks that were once parts of planets or large asteroids. Red BerylRed Beryl Red Beryl is one of the rarest gems. Small amounts are mined at one locality in Utah. Expansive SoilExpansive Soil Expansive Soil Causes more damage than floods, hurricanes & tornadoes combined.
What is Geology?What is Geology? What is Geology? - The study of Earth materials, structures, processes and life over time. Types Of EruptionsTypes Of Eruptions Types of Volcanic Eruptions - A description of the most common eruption types. LabradoriteLabradorite Labradorite is a feldspar mineral that sometimes exhibits an iridescent play-of-colors
SoapstoneSoapstone Soapstone is a metamorphic rock with properties that make it suitable for a variety of projects. Chatoyant GemsChatoyant Gems Chatoyant Gems look like the eye of a cat. A line of light moves across the surface of the stone. Tallest MountainTallest Mountain Tallest Mountain - Everest has rivals in tallness, altitude and distance to the center of Earth.
Field CampsField Camps Field Camps - Over 80 field courses for undergraduate geology students. MineraloidsMineraloids Mineraloids are amorphous naturally-occurring inorganic solids that lack crystallinity. Uses of MarbleUses of Marble The Uses of Marble are numerous and diverse. You will be surprised by how it is used.
Antarctic Meteoriteshunting meteorites in Antarctica The Richest Meteorite Field - More meteorites found here than anywhere else on Earth. RhodoniteRhodonite Rhodonite - a manganese silicate used as a minor ore of manganese and as a gemstone. Coal Close UpCoal through a microscope Coal Through a Microscope - Coal is more than a black rock. It is THE most interesting rock.
Frac SandFrac Sand Frac Sand - The amount of frac sand produced in the USA is up by over 300% since 2009. What is a Maar?What is a Maar? What is a Maar? The second most common volcanic landscape feature on Earth. Olivine Rain?Olivine Rain? Olivine Rain? Spitzer Telescope discovered a rain of olivine crystals on protostar HOPS-68.
Rock ArtRock Art Rock Art - People have been marking on rocks for thousands of years. What are Glaciers?What are Glaciers? What are Glaciers? Learn how glaciers form, flow, advance, retreat, and change over time. Mineral RightsMineral Rights Mineral Rights Who owns the minerals under your land? Who wants to buy them?
IlmeniteIlmenite Ilmenite - The primary ore of titanium and source of most titanium dioxide. Fire OpalFire Opal Fire Opal is a transparent to translucent opal with a yellow, orange or red background color. Largest VolcanoesLargest Volcanoes Largest Volcano - That title is shared by Tamu Massif, Mauna Kea and Ojos del Salado.
Hardness Pickshardness picks Hardness Picks - Mohs hardness testing with precise and easy-to-use hardness picks. Oil Fields from Spacenatural gas flaring Oil Fields from Space - Night views of Earth show the distribution of oil field activity. Horizontal DrillingHorizontal Drilling Horizontal Drilling has opened new resources and significantly improved productivity.
AzuriteAzurite Azurite - Used as an ore of copper, a pigment, ornamental stone and gem material. Canadian DiamondsCanadian Diamonds Canadian Diamond Mines produce some of the largest and highest quality gems! Hand LensHand Lens Hand Lens A 10-power folding magnifier in a metal case. A frequently used lab and field tool.
What is a Geyser?What is a Geyser? Photos of Geysers from around the world with information about height, eruption interval, more. Hydraulic FracturingHydraulic Fracturing Hydraulic Fracturing - Increases well yield by fracturing the reservoir rock with fluid injection. RhyoliteRhyolite Rhyolite An extrusive igneous rock with a high silica content, produced from granitic magma.
Methane HydrateMethane Hydrate Methane Hydrate deposits contain more fuel value than all other fossil fuels combined. HematiteHematite on Mars Hematite - The most important ore of iron. A source of mineral pigment since prehistory. Crushed StoneCrushed Stone Crushed Stone - About four tons per person is used each year in the United States.
What is LNG?What is LNG? What is LNG? The use of LNG as an energy source is growing rapidly. Learn more about LNG. TriboluminescenceTriboluminescence Triboluminescence is a flash produced when a mineral is rubbed, scratched or broken. Salt DomesSalt Domes Salt Domes - Salt structures that are often associated with oil and natural gas.
Plate TectonicsPlate Tectonics Plate Tectonics - Articles, maps, information about plate tectonics and the interior of Earth. MineralsMinerals Minerals - Descriptions, photos, articles, properties and uses for common minerals. RocksRocks Rocks - Galleries of igneous, sedimentary and metamorphic rock photos with descriptions.
Google Earth - FreeDownload Google Earth Free Free Google Earth software allows you to browse seamless world satellite images. Free. Rock TumblersRock Tumblers Rock Tumblers - All about rock tumblers and rock tumbling. Read before you buy a tumbler. Ruby and Sapphireruby and sapphire Ruby and Sapphire are the 2nd and 3rd most popular colored stones in the United States.
Rare Earth ElementsRare Earth Elements Rare Earths - Special materials used in electronics, defense, medical & many other products. Land Below Sea LevelLand Below Sea Level Land Below Sea Level - Did you know that dozens of land locations are below sea level? DiamondsDiamonds Diamonds - Learn about the properties of diamond, its many uses and diamond discoveries.
FossilsFossils Fossils - Learn about fossils and discoveries around the world. 100+ Gemstonescolored stones 100+ Gems - Photos of over 100 beautiful gems ranging from the popular to the obscure. Largest EarthquakeLargest Earthquake Largest Earthquake ever recorded - Magnitude 9.5. Chile, 1960.
San Andreas Fault MapSan Andreas Fault Map Google Map of the San Andreas Fault Zoom in to see the fault trace on satellite images. Fee Mining SitesFee Mining Fee Mining sites are mines that you can enter, pay a fee, and keep anything that you find. VolcanoesVolcanoes Volcanoes - Articles about volcanoes, volcanic hazards and eruptions past and present.
Oil and GasOil and Gas Oil and Gas - Articles about oil and natural gas in the US and around the world. Wrong Volcano!Novarupta Wrong Volcano! The most powerful eruption of the 20th century was misidentified? Azurite GraniteK2 Granite Azurite Granite ? A white granite with blue orbs of azurite. A new material from Pakistan.
OpalsOpal Pictures of Opal - A collection of different types of opal from all around the world and Mars too! BerylBeryl Beryl - the gem mineral of emerald, aquamarine, red beryl, morganite and heliodor. AmmoliteAmmolite Ammolite is a fossil and a gemstone. It is shell material from fossil ammonites.
     
Geology in the News
ConocoPhillips Swears Off Deepwater Drilling
May 4 | OffshoreEnergyToday.com
Declining Energy Prices Lower the Cost of Living
May 4 | Energy Information Administration
The Muds of New Mexico: Mudflows, Pottery, Sedimentary Structures, Etc.
May 4 | New Mexico Bureau of Geology and Mineral Resources
Earth May Be Home to One Trillion Species
May 3 | National Science Foundation
What Causes Meteor Showers?
May 3 | Geology.com
Utah Earthquake Country Examined
May 3 | Insurance Journal
Impacts Might Have Made Ancient Mars Briefly Hospitable to Life
May 2 | EOS Earth and Space Science News
U.S. Shale Oil Down, But Not Out
May 2 | United Press International
Arctic Sea Ice Extent May Shrink Below 2012 Record Low
May 2 | EOS Earth and Space Science News
The Origin of Earthly Diamonds
May 1 | Geology.com
Impacts Might Have Made Ancient Mars Briefly Hospitable to Life
May 1 | EOS Earth and Space Science News
Natural Gas Net Imports in 2015 at Lowest Level Since 1986
April 30 | Energy Information Administration
Climate Modeling with Decision Makers in Mind
April 30 | EOS Earth and Space Science News
Crowdsourced Earthquake Detection Networks
April 30 | EOS Earth and Space Science News
What Lies Beneath West Antarctica?
April 30 | National Science Foundation
Power Sector Coal Demand Falls in Nearly Every State
April 29 | Energy Information Administration
Iraq: Oil and Gas Report
April 29 | Energy Information Administration
Natural Gas Production Declines
April 29 | Energy Information Administration
SciNews: Magnitude 7.8 Earthquake in Ecuador
April 28 | SciNews (Teaching Materials)
Barnett Shale Rig Count is Zero
April 28 | Star-Telegram
Too Much Algae and Too Many Microbes Threaten Coral Reefs
April 28 | National Science Foundation
Solar Plane Lands in U.S. on Record Voyage
April 28 | National Geographic
Severe Electricity Shortages in Venezuela
April 27 | The Washington Post
Diamond Mines in the United States
April 27 | Geology.com
What is Basalt?
April 27 | Geology.com
Blocking a Pipeline Project With Water
April 26 | The New York Times
How Chernobyl Radiation is Being Contained Today
April 25 | The Washington Post
What is Hydraulic Fracturing?
April 25 | Geology.com
Are U.S. States Prepared to Manage Water in a Changing Climate?
April 25 | EOS Earth and Space Science News
Impact of Stratospheric Aerosols on Climate Change
April 25 | EOS Earth and Space Science News
Halo Craters on Pluto
April 25 | NASA
Aurorasaurus Puts Thousands More Eyes on the Sky
April 24 | EOS Earth and Space Science News
Volcanic Lightning Could Aid Hazard Response During Eruptions
April 24 | EOS Earth and Space Science News
Landslide Damage to the Karakoram Highway
April 23 | The Landslide Blog
Landslide Images from the Kumamoto Earthquakes
April 23 | The Landslide Blog
Finches of the Galapagos Continue Through Evolution
April 23 | Christian Science Monitor
Exploring Our National Parks from Space!
April 23 | NASA on tumblr
Bakken Crude Ships to the Netherlands
April 22 | Associated Press
Large Colorless HPHT Synthetic Gem Diamonds from China
April 22 | Gemological Institute of America
March Temperatures Set a Global Record
April 22 | The Washington Post
Inventory of U.S. Greenhouse Gas Emissions and Sinks (large PDF)
April 22 | Environmental Protection Agency
A New Theory for the Dinosaur Extinction
April 21 | The Washington Post
U.S. LNG Shipping to Portugal
April 21 | Bloomberg Business
The East Africa Rift System
April 21 | Geology.com
Uses of Silver
April 21 | Geology.com
States Should Put Fracking Money in Trust Funds
April 20 | National Public Radio
SciNews: Earth Day 2016! (April 22)
April 20 | SciNews (Teaching Materials)
Paleofires and Models Illuminate Future Fire Scenarios
April 20 | EOS Earth and Space Science News
Bright Craters on Ceres
April 20 | NASA
Common Sense and Volcano Tourism
April 20 | Magma Cum Laude
What is Hydraulic Fracturing?
April 19 | Geology.com
2016 Chemical Outlook: Shaleconomics
April 19 | American Journal of Transportation
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