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TurquoiseTurquoise Turquoise - A bluish-green gem material that has been used for over 6000 years. Expansive SoilExpansive Soil Expansive Soil Causes more damage than floods, hurricanes & tornadoes combined. ShaleShale Shale - The rock that has quickly transformed the oil and gas industry.
Great Rift ValleyGreat Rift Valley The East Africa Rift System - The extensive fault system that is tearing Africa apart. Tallest TsunamiTallest Tsunami Tallest Tsunami - A wave with a run-up height of 1720 feet occurred in Lituya Bay, Alaska. Geology ToolsGeology Tools Geology Tools - Rock hammers, field bags, hand lenses, maps, hardness picks, gold pans.
What is Geology?What is Geology? What is Geology? - The study of Earth materials, structures, processes and life over time. Lightning Strikes MapLightning Strikes Map Lightning Strikes Map - A NASA map showing the worldwide distribution of lightning activity. LabradoriteLabradorite Labradorite is a feldspar mineral that sometimes exhibits an iridescent play-of-colors
Crushed StoneCrushed Stone Crushed Stone - About four tons per person is used each year in the United States. US Diamond MinesUS Diamond Mines US Diamond Mines - Did you know that diamonds have been mined in the United States? What Is Earth Science?What Is Earth Science? What Is Earth Science? The study of Earth and its neighbors in space. Learn more!
Quartzitequartzite Quartzite is metamorphic rock formed when sandstone is subjected to heat and pressure. AzuriteAzurite Azurite - Used as an ore of copper, a pigment, ornamental stone and gem material. Gold PansGold Pans Gold Pans and Panning Kits - classifiers, snuffer bottles. Pans sized for kids to Goliath.
Fluorescent MineralsFluorescent Minerals Fluorescent Minerals and rocks glow with spectacular colors under ultraviolet light. CorundumCorundum Corundum is the third hardest mineral. It is also the mineral of ruby and sapphire. 100+ Gemstonescolored stones 100+ Gems - Photos of over 100 beautiful gems ranging from the popular to the obscure.
Hardness Pickshardness picks Hardness Picks - Mohs hardness testing with precise and easy-to-use hardness picks. Utica Well DensityUtica wells Utica Well Density A surprising density of horizontal wells in the Utica Shale of Ohio. MeteoritesMeteorites Meteorites - Rocks that were once parts of planets or large asteroids.
Rare Earth ElementsRare Earth Elements Rare Earths - Special materials used in electronics, defense, medical & many other products. USA Landslide MapLandslides Landslide Incidence Map - A USGS map showing landslide incidence in the United States. Blue FlamesBlue Flames Blue Flames and the largest highly acidic lake in the world at Kawah Ijen Volcano.
DiamondsDiamonds Diamonds - Learn about the properties of diamond, its many uses and diamond discoveries. Hand LensHand Lens Hand Lens A 10-power folding magnifier in a metal case. A frequently used lab and field tool. PeridotitePeridotite Peridotite is a chromite host rock, a source of diamonds and a possible carbon dioxide sink.
EmeraldEmerald Emerald is the most popular green gemstone in the United States and most of the world. Deepest LakeDeepest Lake in the World Deepest Lake in the World Lake Baikal in southern Russia is the deepest lake in the World. Volcanic ExplosivityVolcanic Explosivity Volcanic Explosivity - Rating volcanic eruptions based upon the volume of tephra ejected.
Mount VesuviusMount Vesuvius Mount Vesuvius - geology, history, maps, facts and more about the Vesuvius eruptions. What Are Minerals?What Are Minerals? Minerals are the building blocks of our society. We use items made with them every day. Mineral HardnessMohs Hardness Test Mohs Hardness Scale is a set of reference minerals used for classroom hardness testing.
What is LNG?What is LNG? What is LNG? The use of LNG as an energy source is growing rapidly. Learn more about LNG. Uses of GoldUses of Gold The Many Uses of Gold - Unique properties make gold one of the most useful metals. Mount EtnaMount Etna Mount Etna - The most active volcano in Europe continues an eruption that started in 2001.
SunstoneSunstone Sunstone - A gem feldspar with aventurescence caused by light reflecting from platy inclusions. Rock BagsRock Bags Rock Bags - Durable field bags with pockets for carrying maps, books, specimens and tools. UV Mineral LampUV Mineral Lamp Portable UV Lamp - short / long wave for fluorescent minerals. Safety glasses included.
Google Earth - FreeDownload Google Earth Free Free Google Earth software allows you to browse seamless world satellite images. Free. Methane HydrateMethane Hydrate Methane Hydrate deposits contain more fuel value than all other fossil fuels combined. ChalcopyriteChalcopyrite Chalcopyrite - The most important ore of copper for over five thousand years.
Tallest MountainTallest Mountain Tallest Mountain - Everest has rivals in tallness, altitude and distance to the center of Earth. Huge Diamond DepositPopigai Diamonds The Largest Diamond Deposit in the world could be under Popigai Crater in Russia. RhodoniteRhodonite Rhodonite - a manganese silicate used as a minor ore of manganese and as a gemstone.
Mineral RightsMineral Rights Mineral Rights Who owns the minerals under your land? Who wants to buy them? Types Of EruptionsTypes Of Eruptions Types of Volcanic Eruptions - A description of the most common eruption types. Wall MapsWall Maps Wall Maps - Wall maps of the world, continents, states and the USA.
Rock ArtRock Art Rock Art - People have been marking on rocks for thousands of years. GarnetGarnet Garnet is best known as a red gemstone. It occurs in any color and has many industrial uses. Crater of DiamondsCrater of Diamonds Crater of Diamonds - The only diamond mine in the world where you can be the miner.
SoapstoneSoapstone Soapstone is a metamorphic rock with properties that make it suitable for a variety of projects. Petrified WoodPetrified Wood Petrified Wood is a fossil that forms when dissolved material preciptates and replaces wood. Fire OpalFire Opal Fire Opal is a transparent to translucent opal with a yellow, orange or red background color.
Rocks on MarsRocks on Mars Rocks on Mars - Many of the rocks found on Mars are not very different from Earth rocks. Rock KitsRock Kits Rock Kits for classroom and personal study. A great way to learn about rocks. Uses of MarbleUses of Marble The Uses of Marble are numerous and diverse. You will be surprised by how it is used.
Bear MapBear Map Range of Bear Species - Where you might encounter different types of bears. Red BerylRed Beryl Red Beryl is one of the rarest gems. Small amounts are mined at one locality in Utah. Gem SilicaGem Silica Gem Silica is a blue chalcedony colored by copper. It is the rarest and most valuable chalcedony.
Ruby and Sapphireruby and sapphire Ruby and Sapphire are the 2nd and 3rd most popular colored stones in the United States. VolcanoesVolcanoes Volcanoes - Articles about volcanoes, volcanic hazards and eruptions past and present. Record LightningLake Maracaibo Lightning World Record Lightning - this lake has more lightning than any other place in the world.
The Brewery Rock ?diatomite The Rock Used to Make Beer - Geologists are beer experts and should know about this rock. Sea Level Rise MapsSea Level Rise Maps Sea Level Rise Maps - See what will be flooded as sea level rises. Arctic Seafloor MapArctic Ocean Seafloor Map Arctic Ocean Seafloor Map The ridges, basins, shelves and rifts defining the Arctic seafloor.
RocksRocks Rocks - Galleries of igneous, sedimentary and metamorphic rock photos with descriptions. Pavlof VolcanoPavlof Volcano Pavlof Volcano - one of the most active volcanoes in North America and threat to air traffic. Frac SandFrac Sand Frac Sand - A specialty sand used to maintain porosity in hydraulic fracturing.
Help K-12 allows you to support science projects proposed by K-12 teachers. The Acid TestThe Acid Test The Acid Test - Geologists use dilute hydrochloric acid to identify carbonate minerals. Coal Close UpCoal through a microscope Coal Through a Microscope - Coal is more than a black rock. It is THE most interesting rock.
Canadian DiamondsCanadian Diamonds Canadian Diamond Mines produce some of the largest and highest quality gems! Diamond ProducersDiamond Production Diamond Production leaders include: Botswana, Russia, Angola and Canada. Gems from SpaceGems from Space Extraterrestrial Gems - A number of materials from space are used as attractive gems.
Largest VolcanoesLargest Volcanoes Largest Volcano - That title is shared by Tamu Massif, Mauna Kea and Ojos del Salado. Asteroid Impact MapAsteroid Impact Map Asteroid Impact Map - Explore fifty of the most obvious asteroid impact craters on Earth. MineraloidsMineraloids Mineraloids are amorphous naturally-occurring inorganic solids that lack crystallinity.
Lapis LazuliLapis Lazuli Lapis Lazuli - a metamorphic rock and the most popular blue opaque gemstone in history. Antarctic Meteoriteshunting meteorites in Antarctica The Richest Meteorite Field - More meteorites found here than anywhere else on Earth. Rock TumblersRock Tumblers Rock Tumblers - All about rock tumblers and rock tumbling. Read before you buy a tumbler.
Kyanitekyanite Kyanite is a metamorphic mineral used to make porcelain, abrasive products and gems. Fireworks & MineralsMinerals and Fireworks The Science of Fireworks Learn how the colors and shapes are created. San Andreas FaultSan Andreas Fault The San Andreas Fault - A feature that separates the Pacific and North American Plates.
Olivine Rain?Olivine Rain? Olivine Rain? Spitzer Telescope discovered a rain of olivine crystals on protostar HOPS-68. GemstonesGemstones Gemstones - Colorful images and articles about diamonds and colored stones. What Is The Moho?What Is The Moho? What Is The Moho? Learn about the Mohorovicic Discontinuity - the mantle/crust boundary.
ObsidianObsidian Obsidian - the volcanic rock that cools so quickly that it becomes a natural glass. Geology of Heliumhelium Helium is a byproduct of the natural gas industry. Its most important use is in MRI. Sliding RocksSliding Rocks Sliding Rocks Mystery - What causes these rocks to slide across a playa in Death Valley?
Land Below Sea LevelLand Below Sea Level Land Below Sea Level - Did you know that dozens of land locations are below sea level? San Andreas Fault MapSan Andreas Fault Map Google Map of the San Andreas Fault Zoom in to see the fault trace on satellite images. Geology of GemsGeology of Gems Geology of Gems - The first comprehensive book on the geology of gem deposits.
What is a Geyser?What is a Geyser? What is a Geyser? Photos and information about geysers in many parts of the world. What is a Maar?What is a Maar? What is a Maar? The second most common volcanic landscape feature on Earth. Chatoyant GemsChatoyant Gems Chatoyant Gems look like the eye of a cat. A line of light moves across the surface of the stone.
June 6, 1912Novarupta June 6, 1912 - The most powerful volcanic eruption of the 20th century. Ant Hill GarnetsAnt Hill Garnets Ant Hill Garnets are tiny garnets that ants haul to the surface and discard on their anthill. Honest! Salt DomesSalt Domes Salt Domes - Salt structures that are often associated with oil and natural gas.
Bear AttacksBear Attacks Bear Attacks - Knowing how to react to a bear encounter or attack could save your life. RhyoliteRhyolite Rhyolite An extrusive igneous rock with a high silica content, produced from granitic magma. Homeowners InsuranceHomeowners Insurance Homeowners Insurance usually does not cover the most common geologic hazards.
What are Glaciers?What are Glaciers? What are Glaciers? Learn how glaciers form, flow, advance, retreat, and change over time. GraniteGranite Granite - The intrusive igneous rock that underlies continents and countertops. Horizontal DrillingHorizontal Drilling Horizontal Drilling has opened new resources and significantly improved productivity.
Tanzanitetanzanite Tanzanite was unknown until a few decades ago but it has erupted into wide popularity. MisconceptionDiamonds from Coal Diamond Misconception - Lots of people think that diamonds form from coal. Not True! Earthquake MapsCalifornia Earthquake Maps California Earthquake Maps A collection of isoseismal maps for earthquakes in California.
Watch out for Ticks!ticks Ticks are a problem for geologists in some areas. Learn to recognize and avoid them. Facts About CopperCopper Facts About Copper - Information about copper uses, production, resources and more. Cave of the HandsCave of the Hands Cave of the Hands is a cave where ancient people painted hands about 9000 years ago.
Dowsingdowsing Dowsing is a method used to find underground water that is rejected by most geologists. HematiteHematite on Mars Hematite - The most important ore of iron. A source of mineral pigment since prehistory. Teacher ResourcesTeacher Resources Teacher Resources - K-12 resources for teaching about earth science.
Oil Fields from Spacenatural gas flaring Oil Fields from Space - Night views of Earth show the distribution of oil field activity. SandSand Sand is a diverse material. This gallery includes photos of sand from around the world. Azurite GraniteK2 Granite Azurite Granite ? A white granite with blue orbs of azurite. A new material from Pakistan.
Hydraulic FracturingHydraulic Fracturing Hydraulic Fracturing - Increases well yield by fracturing the reservoir rock with fluid injection. Plate TectonicsPlate Tectonics Plate Tectonics - Articles and maps about plate tectonics and the interior of Earth. TourmalineTourmaline Tourmaline - the most colorful mineral and natural gem material on Earth.
Gfeller LeatherGfeller Leather Cases Gfeller Leather field cases, hammer holsters, lanyards, field belts, acid bottle cases, more. Largest EarthquakeLargest Earthquake Largest Earthquake ever recorded - Magnitude 9.5. Chile, 1960. OpalsOpal Pictures of Opal - A collection of different types of opal from all around the world and Mars too!
FossilsFossils Fossils - Learn about fossils and discoveries around the world. Fee Mining SitesFee Mining Fee Mining sites are mines that you can enter, pay a fee, and keep anything that you find. Oil and GasOil and Gas Oil and Gas - Articles about oil and natural gas in the US and around the world.
Geology in the News
Pluto*s Incredibly Deep Ocean
September 24 | Popular Science
Gem Cutters Reveal the Beauty of Chalcedony
September 23 | Gemological Instutute of America
Hubble Finds an Exoplanet Orbiting Two Stars
September 23 | United Press International
South Korea Shaken by Its Largest Recorded Earthquake
September 23 | Singapore Press Holdings
Identifying Lab-Grown Diamonds
September 23 | Gemological Institute of America
Is Space Mining Viable ?
September 23 |
Classroom Activities From NASA
September 23 | NASA
Alaska: The First U.S. Shipment of LNG by Rail
September 22 | Alaska Dispatch News
Living in the Shadow of the Landslide
September 22 |
The Sea Ice Life Cycle
September 22 | NASA Earth Observatory
Gahcho Kue Diamond Mine Opens in Canada
September 22 | The Washington Post
Diamond Mines in Canada
September 22 |
Many Types of Rock Art
September 21 |
Webinar: How Elections Affect the Geosciences
September 21 | American Geosciences Institute
He*s Watching the World Melt
September 21 | CNN
Why Are Charon*s Poles Dusted With Reddish Material?
September 21 | EOS Earth and Space Science News
Lava Hits Seawater in Hawaii
September 20 | United States Geological Survey
U.S. Oil Imports Showing Strength
September 20 |
China Will Need a Lot More Uranium
September 20 |
An Important Job for Atmospheric Chemists
September 20 | EOS Earth and Space Science News
A Flip-Flopping Climate Could Explain the Watery Past of Mars
September 20 | EOS Earth and Space Science News
Rock Creek Montana Sapphires: A New Age of Mining Begins
September 19 | Gemological Instutute of America
The U.S. is Both a Major Importer and Exporter of Motor Gasoline
September 19 | Energy Information Administration
What Are Rare Earth Elements?
September 19 |
Scientists Get First Glimpse of Solar Wind as It Forms
September 19 | EOS Earth and Space Science News
The Geomagnetic Blitz of September 1941
September 19 | EOS Earth and Space Science News
Gold Toilet at the Guggenheim Museum ?
September 18 |
The Many Uses of Gold
September 18 |
Three New Oil Sands Projects in Canada
September 18 |
What Are Oil Sands?
September 18 |
New Map Show Where Earth Has Gained and Lost Land
September 18 | National Geographic
How Mapmakers Make Mountains Rise Off the Page
September 17 | National Geographic
6,200 Years Ago, Did Peruvians Wear Blue Jeans?
September 17 | Christian Science Monitor
Low Demand Pushes Oil Prices Down
September 16 | Pittsburgh Post-Gazette
Forget What You Thought Dinosaurs Looked Like
September 16 | Business Insider
The First Marine Monument Off New England
September 16 | The Washington Post
Large-Diameter Pipeline Ownership in the U.S.
September 16 | Energy Information Administration
EIA Releases Annul Energy Outlook 2016
September 16 | Energy Information Administration
GIA Offers $2 Million for Gemology Scholarships
September 15 | Gemological Instutute of America
Gem Buyers Beware: Get Rich Quick Scams
September 15 | Gemological Instutute of America
Satellite Image: Fires in Siberia
September 15 | NASA Earth Observatory
Giant Algal Bloom Sheds Light on Formation of White Cliffs of Dover
September 15 | American Geophysical Union on YouTube
More Fatal Landslides in Nepal
September 15 | The Landslide Blog
Widespread Mercury Contamination Across Western North America
September 15 | United States Geological Survey
The Most Accurate Map of the Milky Way
September 15 | National Geographic
World*s Strongest Storm Moves Onto China
September 15 | Radio New Zealand
Coking Coal Prices Are Up Nearly 150%
September 15 |
Magma Accumulation Beneath Sakurajima Volcano, Japan
September 14 | University of Bristol
Asphalt-Based Carbon Capture
September 14 | Rice University
Marcellus Shale Impact Fees Invested in Community Improvements
September 14 | Washington (PA) Observer-Reporter
Where Do Bears Live in North America?
September 14 |
Melting Ice Could Reveal Toxic Cold War Era Waste in Greenland
September 13 | EOS Earth and Space Science News
The Trend of Drilled But Uncompleted Oil and Gas Wells
September 13 | Energy Information Administration
Diavik: Mining Diamonds in the Canadian Arctic
September 12 | Gemological Instutute of America
Coking Coal Price Jumps 20% In One Week
September 12 |
Chinese Deal Boosts Thermal Coal Price
September 12 |
New Technique Tracks Rock Deformation at a Micrometric Scale
September 12 | EOS Earth and Space Science News
Here Comes the Anthropocene
September 12 | EOS Earth and Space Science News
What Is the Eagle Ford Shale?
September 11 |
M5.7 Earthquake - East African Rift
September 10 | United States Geological Survey
What is the East African Rift System?
September 10 |
Cutting Rubellite Tourmaline in China
September 10 | Gemological Institute of America
Zn-Pb-Ag Mineral Deposit Discovered in SE Arizona
September 10 | Arizona Geology Blog
Rocks on Mars
September 10 |

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