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The Brewery Rock ?diatomite The Rock Used to Make Beer - Geologists are beer experts and should know about this rock. Dallol VolcanoDallol Volcano Dallol Volcano is one of the strangest landscapes on earth - at 269 feet below sea level. Red BerylRed Beryl Red Beryl is one of the rarest gems. Small amounts are mined at one locality in Utah.
Great Rift ValleyGreat Rift Valley The East Africa Rift System - The extensive fault system that is tearing Africa apart. Mineral HardnessMohs Hardness Test Mohs Hardness Scale is a set of reference minerals used for classroom hardness testing. Hand LensHand Lens Hand Lens A 10-power folding magnifier in a metal case. A frequently used lab and field tool.
US Diamond MinesUS Diamond Mines US Diamond Mines - Did you know that diamonds have been mined in the United States? MeteoritesMeteorites Meteorites - Rocks that were once parts of planets or large asteroids. Rock GlaciersRock Glaciers Rock Glaciers - Masses of rock, ice, snow, mud and water that slowly flow down slope.
Gem SilicaGem Silica Gem Silica is a blue chalcedony colored by copper. It is the rarest and most valuable chalcedony. Hardness Pickshardness picks Hardness Picks - Mohs hardness testing with precise and easy-to-use hardness picks. GemstonesGemstones Gemstones - Colorful images and articles about diamonds and colored stones.
Field CampsField Camps Field Camps - Over 80 field courses for undergraduate geology students. Sea Level Rise MapsSea Level Rise Maps Sea Level Rise Maps - See what will be flooded as sea level rises. What are Glaciers?What are Glaciers? What are Glaciers? Learn how glaciers form, flow, advance, retreat, and change over time.
Teacher ResourcesTeacher Resources Teacher Resources - K-12 resources for teaching about earth science. SoapstoneSoapstone Soapstone is a metamorphic rock with properties that make it suitable for a variety of projects. Volcanic ExplosivityVolcanic Explosivity Volcanic Explosivity - Rating volcanic eruptions based upon the volume of tephra ejected.
Hydraulic FracturingHydraulic Fracturing Hydraulic Fracturing - Increases well yield by fracturing the reservoir rock with fluid injection. LabradoriteLabradorite Labradorite is a feldspar mineral that sometimes exhibits an iridescent play-of-colors GraniteGranite Granite - The intrusive igneous rock that underlies continents and countertops.
Coal Close UpCoal through a microscope Coal Through a Microscope - Coal is more than a black rock. It is THE most interesting rock. IlmeniteIlmenite Ilmenite - The primary ore of titanium and source of most titanium dioxide. Fluorescent MineralsFluorescent Minerals Fluorescent Minerals and rocks glow with spectacular colors under ultraviolet light.
MineraloidsMineraloids Mineraloids are amorphous naturally-occurring inorganic solids that lack crystallinity. RhodoniteRhodonite Rhodonite - a manganese silicate used as a minor ore of manganese and as a gemstone. What Is The Moho?What Is The Moho? What Is The Moho? Learn about the Mohorovicic Discontinuity - the mantle/crust boundary.
Tallest MountainTallest Mountain Tallest Mountain - Everest has rivals in tallness, altitude and distance to the center of Earth. What is a Maar?What is a Maar? What is a Maar? The second most common volcanic landscape feature on Earth. TriboluminescenceTriboluminescence Triboluminescence is a flash produced when a mineral is rubbed, scratched or broken.
Canadian DiamondsCanadian Diamonds Canadian Diamond Mines produce some of the largest and highest quality gems! RocksRocks Rocks - Galleries of igneous, sedimentary and metamorphic rock photos with descriptions. Oil Fields from Spacenatural gas flaring Oil Fields from Space - Night views of Earth show the distribution of oil field activity.
Methane HydrateMethane Hydrate Methane Hydrate deposits contain more fuel value than all other fossil fuels combined. Expansive SoilExpansive Soil Expansive Soil Causes more damage than floods, hurricanes & tornadoes combined. AzuriteAzurite Azurite - Used as an ore of copper, a pigment, ornamental stone and gem material.
Wall MapsWall Maps Wall Maps - Wall maps of the world, continents, states and the USA. Mount ClevelandMount Cleveland Mount Cleveland is an active volcano in the Aleutian Islands and a threat to air traffic. Fire OpalFire Opal Fire Opal is a transparent to translucent opal with a yellow, orange or red background color.
Antarctic Meteoriteshunting meteorites in Antarctica The Richest Meteorite Field - More meteorites found here than anywhere else on Earth. Mineral RightsMineral Rights Mineral Rights Who owns the minerals under your land? Who wants to buy them? Olivine Rain?Olivine Rain? Olivine Rain? Spitzer Telescope discovered a rain of olivine crystals on protostar HOPS-68.
RhyoliteRhyolite Rhyolite An extrusive igneous rock with a high silica content, produced from granitic magma. Chatoyant GemsChatoyant Gems Chatoyant Gems look like the eye of a cat. A line of light moves across the surface of the stone. Types Of EruptionsTypes Of Eruptions Types of Volcanic Eruptions - A description of the most common eruption types.
Horizontal DrillingHorizontal Drilling Horizontal Drilling has opened new resources and significantly improved productivity. Frac SandFrac Sand Frac Sand - The amount of frac sand produced in the USA is up by over 300% since 2009. Rock ArtRock Art Rock Art - People have been marking on rocks for thousands of years.
Uses of MarbleUses of Marble The Uses of Marble are numerous and diverse. You will be surprised by how it is used. Largest VolcanoesLargest Volcanoes Largest Volcano - That title is shared by Tamu Massif, Mauna Kea and Ojos del Salado. UV Mineral LampUV Mineral Lamp Portable UV Lamp - short / long wave for fluorescent minerals. Safety glasses included.
What is a Geyser?What is a Geyser? Photos of Geysers from around the world with information about height, eruption interval, more. HematiteHematite on Mars Hematite - The most important ore of iron. A source of mineral pigment since prehistory. Salt DomesSalt Domes Salt Domes - Salt structures that are often associated with oil and natural gas.
What is LNG?What is LNG? What is LNG? The use of LNG as an energy source is growing rapidly. Learn more about LNG. Crushed StoneCrushed Stone Crushed Stone - About four tons per person is used each year in the United States. What is Geology?What is Geology? What is Geology? - The study of Earth materials, structures, processes and life over time.
Plate TectonicsPlate Tectonics Plate Tectonics - Articles, maps, information about plate tectonics and the interior of Earth. BerylBeryl Beryl - the gem mineral of emerald, aquamarine, red beryl, morganite and heliodor. ChalcopyriteChalcopyrite Chalcopyrite - The most important ore of copper for over five thousand years.
Rock BagsRock Bags Rock Bags - Durable field bags with pockets for carrying maps, books, specimens and tools. SerpentineSerpentine Serpentine - metamorphic rocks used in construction, architecture and lapidary work. Identifying MeteoritesMeteorite Identification Meteorite Identification Step one in identifying a possible meteorite is the magnet test.
Lapis LazuliLapis Lazuli Lapis Lazuli - a metamorphic rock and the most popular blue opaque gemstone in history. Arctic Seafloor MapArctic Ocean Seafloor Map Arctic Ocean Seafloor Map The ridges, basins, shelves and rifts defining the Arctic seafloor. 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. Blue FlamesBlue Flames Blue Flames and the largest highly acidic lake in the world at Kawah Ijen Volcano. Fee Mining SitesFee Mining Fee Mining sites are mines that you can enter, pay a fee, and keep anything that you find.
Quartzitequartzite Quartzite is metamorphic rock formed when sandstone is subjected to heat and pressure. Rock KitsRock Kits Rock Kits for classroom and personal study. A great way to learn about rocks. Earthquake MapsCalifornia Earthquake Maps California Earthquake Maps A collection of isoseismal maps for earthquakes in California.
Life on Europa ?Life on Europa Life on Europa might exist in a salty ocean a short distance below its frozen surface. Geology StoreGeology Tools Geology Tools - Rock hammers, field bags, hand lenses, maps, hardness picks, gold pans. PeridotitePeridotite Peridotite is a chromite host rock, a source of diamonds and a possible carbon dioxide sink.
San Andreas Fault MapSan Andreas Fault Map Google Map of the San Andreas Fault Zoom in to see the fault trace on satellite images. Lightning Strikes MapLightning Strikes Map Lightning Strikes Map - A NASA map showing the worldwide distribution of lightning activity. What Is Earth Science?What Is Earth Science? What Is Earth Science? The study of Earth and its neighbors in space. Learn more!
Sliding RocksSliding Rocks Sliding Rocks Mystery - What causes these rocks to slide across a playa in Death Valley? MisconceptionDiamonds from Coal Diamond Misconception - Lots of people think that diamonds form from coal. Not True! Cave of the HandsCave of the Hands Cave of the Hands is a cave where ancient people painted hands about 9000 years ago.
AmmoliteAmmolite Ammolite is a fossil and a gemstone. It is shell material from fossil ammonites. Uses of GoldUses of Gold The Many Uses of Gold - Unique properties make gold one of the most useful metals. Google Earth - FreeDownload Google Earth Free Free Google Earth software allows you to browse seamless world satellite images. Free.
Rocks on MarsRocks on Mars Rocks on Mars - Many of the rocks found on Mars are not very different from Earth rocks. SandSand Sand is a diverse material. This gallery includes photos of sand from around the world. USA Landslide MapLandslides Landslide Incidence Map - A USGS map showing landslide incidence in the United States.
Bear AttacksBear Attacks Bear Attacks - Knowing how to react to a bear encounter or attack could save your life. Mount EtnaMount Etna Mount Etna - The most active volcano in Europe continues an eruption that started in 2001. Asteroid Impact MapAsteroid Impact Map Asteroid Impact Map - Explore fifty of the most obvious asteroid impact craters on Earth.
AstronomyAstronomy Astronomy - Fantastic images and articles about solar system and deep-space astronomy. 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.
FossilsFossils Fossils - Learn about fossils and discoveries around the world. DiamondsDiamonds Diamonds - Learn about the properties of diamond, its many uses and diamond discoveries. Homeowners InsuranceHomeowners Insurance Homeowners Insurance usually does not cover the most common geologic hazards.
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? Facts About CopperCopper Facts About Copper - Information about copper uses, production, resources and more.
SunstoneSunstone Sunstone is a gem feldspar with aventurescence caused by light reflecting from platy inclusions. San Andreas FaultSan Andreas Fault The San Andreas Fault - A feature that separates the Pacific and North American Plates. Dowsingdowsing Dowsing is a method used to find underground water that is rejected by most geologists.
MineralsMinerals Minerals - Descriptions, photos, articles, properties and uses for common minerals. 100+ Gemstonescolored stones 100+ Gems - Photos of over 100 beautiful gems ranging from the popular to the obscure. TurquoiseTurquoise Turquoise - A bluish-green gem material that has been used for over 6000 years.
Ruby and Sapphireruby and sapphire Ruby and Sapphire are the 2nd and 3rd most popular colored stones in the United States. Mount VesuviusMount Vesuvius Mount Vesuvius - geology, history, maps, facts and more about the Vesuvius eruptions. Crater of DiamondsCrater of Diamonds Crater of Diamonds - The only diamond mine in the world where you can be the miner.
ShaleShale Shale - The rock that has quickly transformed the oil and gas industry. OpalsOpal Pictures of Opal - A collection of different types of opal from all around the world and Mars too! ObsidianObsidian Obsidian - the volcanic rock that cools so quickly that it becomes a natural glass.
EmeraldEmerald Emerald is the most popular green gemstone in the United States and most of the world. Tanzanitetanzanite Tanzanite was unknown until a few decades ago but it has erupted into wide popularity. Gems from SpaceGems from Space Extraterrestrial Gems - A number of materials from space are used as attractive gems.
Watch out for Ticks!ticks Ticks are a problem for geologists in some areas. Learn to recognize and avoid them. The Acid TestThe Acid Test The Acid Test - Geologists use dilute hydrochloric acid to identify carbonate minerals. Petrified WoodPetrified Wood Petrified Wood is a fossil that forms when dissolved material preciptates and replaces wood.
Largest EarthquakeLargest Earthquake Largest Earthquake ever recorded - Magnitude 9.5. Chile, 1960. Largest DesertLargest Desert Largest Desert - The Sahara is huge but two polar deserts are larger. CorundumCorundum Corundum is the third hardest mineral. It is also the mineral of ruby and sapphire.
GarnetGarnet Garnet is best known as a red gemstone. It occurs in any color and has many industrial uses. Tallest TsunamiTallest Tsunami Tallest Tsunami - A wave with a run-up height of 1720 feet occurred in Lituya Bay, Alaska. Huge Diamond DepositPopigai Diamonds The Largest Diamond Deposit in the world could be under Popigai Crater in Russia.
     
Geology in the News
Shallow M6.4 Hits Taiwan
February 6 | United States Geological Survey
Southwest Sliding into a New Normal: Drier Conditions
February 6 | National Science Foundation
Chinese Annual LNG Imports Decline for First Time Since Imports Began
February 5 | Energy Information Administration
What is LNG?
February 5 | Geology.com
Interactive Sea Level Rise Map
February 4 | Geology.com
High Inventories Push Crude Prices to Lowest Levels in 13 Years
February 4 | Energy Information Administration
Planning for the Really Big Earthquake
February 4 | GeekWire.com
What Are Rare Earth Elements?
February 4 | Geology.com
Video of the Only Known Wild Jaguar in the U.S.
February 4 | United Press International
Mexico - U.S. Cooperation on Exploring the Burgos Basin
February 4 | United Press International
Early-Career Geoscientist Awards
February 3 | Magma Cum Laude
A Geologic Play Book for Utica Shale Appalachian Basin Exploration
February 3 | West Virginia Geological Survey
What Is the Utica Shale
February 3 | Geology.com
Updated: Locations of Mapped Earth Fissure Traces in Arizona
February 3 | Arizona Geological Survey
Natural Hazards in Arizona (Interactive Map)
February 3 | Arizona Geological Survey
US Seeks to Improve Earthquake Preparedness
February 3 | Voice of America
The Top Ten Rookie Gold Mines
February 3 | Mining.com
Human-Made Fires Pollute Air with Ozone Half a World Away
February 3 | EOS Earth and Space Science News
Visualizing Cross-Sectional Data in Google Earth
February 2 | EOS Earth and Space Science News
Climate Models Predict Diverse Arctic Ocean Shipping Routes
February 2 | EOS Earth and Space Science News
The Dangerous Search for Emeralds in Colombia
February 2 | The Washington Post
Global Earthquake Numbers on Par for 2015
February 1 | United States Geological Survey
The Downsides of Cheap Oil
February 1 | CBS News
GIA Field Gemologist Documents Madagascar Ruby Rush
February 1 | Gemological Institute of America
Understanding the Formation and Primordial Evolution of Earth
February 1 | EOS Earth and Space Science News
Shale Gas Boosts Delaware River Port Traffic
February 1 | National Public Radio
Record Global Warmth in 2015, but Some Places Bucked the Trend
January 31 | EOS Earth and Space Science News
Scientists Detect Wisps of Wind in Space
January 31 | EOS Earth and Space Science News
Do Bigger Brains Make Smarter Carnivores?
January 31 | National Science Foundation
Mining Sapphire in Australia
January 31 | Gemological Instutute of America
Bringing Gemology to the GSA Annual Meeting
January 31 | Gemological Instutute of America
M7.0 Earthquake, Deep Under the Kamchatka Peninsula
January 30 | United States Geological Survey
Animated Flight Over Ceres
January 30 | NASA
Karst Map of the United States
January 30 | American Geosciences Institute
High-Tech Aircraft Triggers Earthquake Mystery
January 30 | The Washington Post
Second Largest Lake in Bolivia Dries Up
January 29 | Associated Press
Where is Lake Poopo?
January 29 | Geology.com
New Pipelines Increase Marcellus Takeaway Capacity
January 29 | Energy Information Administration
Evaluating Diamond Rough
January 29 | Gemological Institute of America
Bright Light at Midnight: Diamonds in the Far North of Canada
January 29 | Gemological Institute of America
Diamond Mines in Canada
January 29 | Geology.com
Delays in Pipelines to Serve Marcellus and Utica
January 28 | The Intelligencer, Wheeling News-Register
One More Reason Not To Mine Nickel
January 28 | Mining.com
Facts About Nickel
January 28 | USGS Factsheet on Geology.com
Where Is Guinea ?
January 27 | Geology.com
Updated USGS Topo Maps for Iowa and Kansas
January 27 | United States Geological Survey
Big Discoveries From Tiny Particles
January 27 | National Science Foundation
Nanotechnology: Super Small Science
January 27 | National Science Foundation
Industries Hiring Recent Geoscience Graduates in 2015
January 26 | American Geosciences Institute
Reversal of Forest-Soil Acidification in the Northeast
January 26 | American Chemical Society
Monitoring Groundwater and Soil Moisture From Space
January 26 | National Drought Mitigation Center
Hunting Secrets of the Venus Flytrap
January 26 | EurekAlert
The Horniest Dinosaurs Were the Sexiest
January 26 | The Washington Post
Greenland Prepares to Export Uranium
January 25 | Mining.com
M6.1 Earthquake: Strait of Gibraltar
January 25 | United States Geological Survey
Flying Drones in Antarctic is Not Easy
January 25 | EOS Earth and Space Science News
Faults and a Fold Near Harpers Ferry
January 25 | Mountain Beltway Blog
Folded Mountains Ale
January 25 | Mountain Beltway Blog
A Banana Extinction ?
January 24 | BBC
Alaska Earthquake Shakes Anchorage
January 24 | Los Angeles Times
USGS: M7.1 Earthquake 83km E of Old Iliamna, Alaska
January 24 | United States Geological Survey
New Rules to Clamp Down on Natural Gas Flaring
January 24 | U.S. News and World Report
Zebra Stripes Not for Camouflage
January 24 | UC Davis
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