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Blue FlamesBlue Flames Blue Flames and the largest highly acidic lake in the world at Kawah Ijen Volcano. USA Landslide MapLandslides Landslide Incidence Map - A USGS map showing landslide incidence in the United States. Deepest LakeDeepest Lake in the World Deepest Lake in the World Lake Baikal in southern Russia is the deepest lake in the World.
SunstoneSunstone Sunstone - A gem feldspar with aventurescence caused by light reflecting from platy inclusions. DiamondsDiamonds Diamonds - Learn about the properties of diamond, its many uses and diamond discoveries. Mineral HardnessMohs Hardness Test Mohs Hardness Scale is a set of reference minerals used for classroom hardness testing.
ChalcopyriteChalcopyrite Chalcopyrite - The most important ore of copper for over five thousand years. Wall MapsWall Maps Wall Maps - Wall maps of the world, continents, states and the USA. Mount EtnaMount Etna Mount Etna - The most active volcano in Europe continues an eruption that started in 2001.
GarnetGarnet Garnet is best known as a red gemstone. It occurs in any color and has many industrial uses. Rocks on MarsRocks on Mars Rocks on Mars - Many of the rocks found on Mars are not very different from Earth rocks. Volcanic ExplosivityVolcanic Explosivity Volcanic Explosivity - Rating volcanic eruptions based upon the volume of tephra ejected.
Uses of MarbleUses of Marble The Uses of Marble are numerous and diverse. You will be surprised by how it is used. SoapstoneSoapstone Soapstone is a metamorphic rock with properties that make it suitable for a variety of projects. Pavlof VolcanoPavlof Volcano Pavlof Volcano - one of the most active volcanoes in North America and threat to air traffic.
Crater of DiamondsCrater of Diamonds Crater of Diamonds - The only diamond mine in the world where you can be the miner. Frac SandFrac Sand Frac Sand - A specialty sand used to maintain porosity in hydraulic fracturing. Red BerylRed Beryl Red Beryl is one of the rarest gems. Small amounts are mined at one locality in Utah.
Canadian DiamondsCanadian Diamonds Canadian Diamond Mines produce some of the largest and highest quality gems! Rock BagsRock Bags Rock Bags - Durable field bags with pockets for carrying maps, books, specimens and tools. Uses of GoldUses of Gold The Many Uses of Gold - Unique properties make gold one of the most useful metals.
Record LightningLake Maracaibo Lightning World Record Lightning - this lake has more lightning than any other place in the world. What is LNG?What is LNG? What is LNG? The use of LNG as an energy source is growing rapidly. Learn more about LNG. Mineral RightsMineral Rights Mineral Rights Who owns the minerals under your land? Who wants to buy them?
Huge Diamond DepositPopigai Diamonds The Largest Diamond Deposit in the world could be under Popigai Crater in Russia. Methane HydrateMethane Hydrate Methane Hydrate deposits contain more fuel value than all other fossil fuels combined. What Are Minerals?What Are Minerals? Minerals are the building blocks of our society. We use items made with them every day.
RhodoniteRhodonite Rhodonite - a manganese silicate used as a minor ore of manganese and as a gemstone. Tallest MountainTallest Mountain Tallest Mountain - Everest has rivals in tallness, altitude and distance to the center of Earth. Fire OpalFire Opal Fire Opal is a transparent to translucent opal with a yellow, orange or red background color.
Rock ArtRock Art Rock Art - People have been marking on rocks for thousands of years. Mount VesuviusMount Vesuvius Mount Vesuvius - geology, history, maps, facts and more about the Vesuvius eruptions. Petrified WoodPetrified Wood Petrified Wood is a fossil that forms when dissolved material preciptates and replaces wood.
Ruby and Sapphireruby and sapphire Ruby and Sapphire are the 2nd and 3rd most popular colored stones in the United States. Help K-12 TeachersDonorsChoose.org DonorsChoose.org allows you to support science projects proposed by K-12 teachers. Rock KitsRock Kits Rock Kits for classroom and personal study. A great way to learn about rocks.
Bear MapBear Map Range of Bear Species - Where you might encounter different types of bears. Gem SilicaGem Silica Gem Silica is a blue chalcedony colored by copper. It is the rarest and most valuable chalcedony. Diamond ProducersDiamond Production Diamond Production leaders include: Botswana, Russia, Angola and Canada.
100+ Gemstonescolored stones 100+ Gems - Photos of over 100 beautiful gems ranging from the popular to the obscure. Coal Close UpCoal through a microscope Coal Through a Microscope - Coal is more than a black rock. It is THE most interesting rock. Arctic Seafloor MapArctic Ocean Seafloor Map Arctic Ocean Seafloor Map The ridges, basins, shelves and rifts defining the Arctic seafloor.
The Acid TestThe Acid Test The Acid Test - Geologists use dilute hydrochloric acid to identify carbonate minerals. Fireworks & MineralsMinerals and Fireworks The Science of Fireworks Learn how the colors and shapes are created. Kyanitekyanite Kyanite is a metamorphic mineral used to make porcelain, abrasive products and gems.
Antarctic Meteoriteshunting meteorites in Antarctica The Richest Meteorite Field - More meteorites found here than anywhere else on Earth. Types Of EruptionsTypes Of Eruptions Types of Volcanic Eruptions - A description of the most common eruption types. Google Earth - FreeDownload Google Earth Free Free Google Earth software allows you to browse seamless world satellite images. Free.
Olivine Rain?Olivine Rain? Olivine Rain? Spitzer Telescope discovered a rain of olivine crystals on protostar HOPS-68. Geology of Heliumhelium Helium is a byproduct of the natural gas industry. Its most important use is in MRI. MineraloidsMineraloids Mineraloids are amorphous naturally-occurring inorganic solids that lack crystallinity.
Geology of GemsGeology of Gems Geology of Gems - The first comprehensive book on the geology of gem deposits. Rare Earth ElementsRare Earth Elements Rare Earths - Special materials used in electronics, defense, medical & many other products. Largest VolcanoesLargest Volcanoes Largest Volcano - That title is shared by Tamu Massif, Mauna Kea and Ojos del Salado.
Geology ToolsGeology Tools Geology Tools - Rock hammers, field bags, hand lenses, maps, hardness picks, gold pans. Rock TumblersRock Tumblers Rock Tumblers - All about rock tumblers and rock tumbling. Read before you buy a tumbler. The Brewery Rock ?diatomite The Rock Used to Make Beer - Geologists are beer experts and should know about this rock.
Homeowners InsuranceHomeowners Insurance Homeowners Insurance usually does not cover the most common geologic hazards. Lapis LazuliLapis Lazuli Lapis Lazuli - a metamorphic rock and the most popular blue opaque gemstone in history. RocksRocks Rocks - Galleries of igneous, sedimentary and metamorphic rock photos with descriptions.
Gems from SpaceGems from Space Extraterrestrial Gems - A number of materials from space are used as attractive gems. VolcanoesVolcanoes Volcanoes - Articles about volcanoes, volcanic hazards and eruptions past and present. 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. Sea Level Rise MapsSea Level Rise Maps Sea Level Rise Maps - See what will be flooded as sea level rises. Asteroid Impact MapAsteroid Impact Map Asteroid Impact Map - Explore fifty of the most obvious asteroid impact craters on Earth.
Salt DomesSalt Domes Salt Domes - Salt structures that are often associated with oil and natural gas. What is a Geyser?What is a Geyser? What is a Geyser? Photos and information about geysers in many parts of the world. Land Below Sea LevelLand Below Sea Level Land Below Sea Level - Did you know that dozens of land locations are below sea level?
Horizontal DrillingHorizontal Drilling Horizontal Drilling has opened new resources and significantly improved productivity. RhyoliteRhyolite Rhyolite An extrusive igneous rock with a high silica content, produced from granitic magma. What is a Maar?What is a Maar? What is a Maar? The second most common volcanic landscape feature on Earth.
Oil Fields from Spacenatural gas flaring Oil Fields from Space - Night views of Earth show the distribution of oil field activity. Gold PansGold Pans Gold Pans and Panning Kits - classifiers, snuffer bottles. Pans sized for kids to Goliath. GemstonesGemstones Gemstones - Colorful images and articles about diamonds and colored stones.
Ant Hill GarnetsAnt Hill Garnets Ant Hill Garnets are tiny garnets that ants haul to the surface and discard on their anthill. Honest! Watch out for Ticks!ticks Ticks are a problem for geologists in some areas. Learn to recognize and avoid them. San Andreas Fault MapSan Andreas Fault Map Google Map of the San Andreas Fault Zoom in to see the fault trace on satellite images.
Hardness Pickshardness picks Hardness Picks - Mohs hardness testing with precise and easy-to-use hardness picks. What Is The Moho?What Is The Moho? What Is The Moho? Learn about the Mohorovicic Discontinuity - the mantle/crust boundary. HematiteHematite on Mars Hematite - The most important ore of iron. A source of mineral pigment since prehistory.
What Is Earth Science?What Is Earth Science? What Is Earth Science? The study of Earth and its neighbors in space. Learn more! ObsidianObsidian Obsidian - the volcanic rock that cools so quickly that it becomes a natural glass. Sliding RocksSliding Rocks Sliding Rocks Mystery - What causes these rocks to slide across a playa in Death Valley?
San Andreas FaultSan Andreas Fault The San Andreas Fault - A feature that separates the Pacific and North American Plates. Hand LensHand Lens Hand Lens A 10-power folding magnifier in a metal case. A frequently used lab and field tool. AzuriteAzurite Azurite - Used as an ore of copper, a pigment, ornamental stone and gem material.
TurquoiseTurquoise Turquoise - A bluish-green gem material that has been used for over 6000 years. Crushed StoneCrushed Stone Crushed Stone - About four tons per person is used each year in the United States. Dowsingdowsing Dowsing is a method used to find underground water that is rejected by most geologists.
Tanzanitetanzanite Tanzanite was unknown until a few decades ago but it has erupted into wide popularity. What are Glaciers?What are Glaciers? What are Glaciers? Learn how glaciers form, flow, advance, retreat, and change over time. Earthquake MapsCalifornia Earthquake Maps California Earthquake Maps A collection of isoseismal maps for earthquakes in California.
Facts About CopperCopper Facts About Copper - Information about copper uses, production, resources and more. Expansive SoilExpansive Soil Expansive Soil Causes more damage than floods, hurricanes & tornadoes combined. Great Rift ValleyGreat Rift Valley The East Africa Rift System - The extensive fault system that is tearing Africa apart.
Bear AttacksBear Attacks Bear Attacks - Knowing how to react to a bear encounter or attack could save your life. Tallest TsunamiTallest Tsunami Tallest Tsunami - A wave with a run-up height of 1720 feet occurred in Lituya Bay, Alaska. Azurite GraniteK2 Granite Azurite Granite ? A white granite with blue orbs of azurite. A new material from Pakistan.
EmeraldEmerald Emerald is the most popular green gemstone in the United States and most of the world. ShaleShale Shale - The rock that has quickly transformed the oil and gas industry. Cave of the HandsCave of the Hands Cave of the Hands is a cave where ancient people painted hands about 9000 years ago.
MisconceptionDiamonds from Coal Diamond Misconception - Lots of people think that diamonds form from coal. Not True! MeteoritesMeteorites Meteorites - Rocks that were once parts of planets or large asteroids. Lightning Strikes MapLightning Strikes Map Lightning Strikes Map - A NASA map showing the worldwide distribution of lightning activity.
What is Geology?What is Geology? What is Geology? - The study of Earth materials, structures, processes and life over time. US Diamond MinesUS Diamond Mines US Diamond Mines - Did you know that diamonds have been mined in the United States? SandSand Sand is a diverse material. This gallery includes photos of sand from around the world.
Hydraulic FracturingHydraulic Fracturing Hydraulic Fracturing - Increases well yield by fracturing the reservoir rock with fluid injection. Quartzitequartzite Quartzite is metamorphic rock formed when sandstone is subjected to heat and pressure. GraniteGranite Granite - The intrusive igneous rock that underlies continents and countertops.
Fluorescent MineralsFluorescent Minerals Fluorescent Minerals and rocks glow with spectacular colors under ultraviolet light. Teacher ResourcesTeacher Resources Teacher Resources - K-12 resources for teaching about earth science. PeridotitePeridotite Peridotite is a chromite host rock, a source of diamonds and a possible carbon dioxide sink.
LabradoriteLabradorite Labradorite is a feldspar mineral that sometimes exhibits an iridescent play-of-colors CorundumCorundum Corundum is the third hardest mineral. It is also the mineral of ruby and sapphire. Abandoned MinesAbandoned Mines Abandoned Mine accidents take 20 to 30 lives per year. Many can be prevented with education.
UV Mineral LampUV Mineral Lamp Portable UV Lamp - short / long wave for fluorescent minerals. Safety glasses included. Gfeller LeatherGfeller Leather Cases Gfeller Leather field cases, hammer holsters, lanyards, field belts, acid bottle cases, more. Mount ClevelandMount Cleveland Mount Cleveland is an active volcano in the Aleutian Islands and a threat to air traffic.
Plate TectonicsPlate Tectonics Plate Tectonics - Articles and maps about plate tectonics and the interior of Earth. 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.
Fee Mining SitesFee Mining Fee Mining sites are mines that you can enter, pay a fee, and keep anything that you find. OpalsOpal Pictures of Opal - A collection of different types of opal from all around the world and Mars too! Largest EarthquakeLargest Earthquake Largest Earthquake ever recorded - Magnitude 9.5. Chile, 1960.
     
Geology in the News
First Results from the Magnetospheric Multiscale Mission
August 24 | EOS Earth and Space Science News
M6.2 Earthquake - Central Italy
August 24 | United States Geological Survey
Headwater Streams May Export More Carbon Than Previously Thought
August 24 | EOS Earth and Space Science News
New York State Professional Geology Licensure
August 24 | University of the State of New York
The First Geology Museum in Turkey
August 23 | Hurriyet Daily News
Pennsylvania Oil and Gas Annual Report for 2015 (large pdf - worth the wait)
August 23 | Pennsylvania Department of Environmental Protection
You Can Scuba Dive For Diamonds, But...
August 23 | gCaptain.com
Scientists Bittersweet as Australia Backtracks on Climate Cuts
August 22 | EOS Earth and Space Science News
Characterizing the Faults Beneath Germany
August 22 | EOS Earth and Space Science News
U.S. Parks to Make Adaptation to Continuous Change a Top Goal
August 22 | EOS Earth and Space Science News
A Better Way to Track Diamond Provenance?
August 22 | TheNational.ae
Where is Sierra Leone?
August 22 | Geology.com
NASA Measuring Sea Ice at the Peak of Melt
August 22 | NASA on YouTube
Six Things Dwarf Planets Have Taught Us About the Solar System
August 21 | EOS Earth and Space Science News
Biodiversity in Salt Marshes Builds Climate Resilience
August 20 | National Science Foundation
Kilauea: Erupting Since 1983
August 20 | PBS NEWSHOUR
Mining Diamonds in the Canadian Arctic: The Diavik Mine
August 20 | Gemological Institute of America
Examination of the Largest Canadian Diamond
August 20 | Gemological Institute of America
Mapping Okmok Volcano with Seismic Waves
August 19 | Alaska Public Media
India and China Lead Asia LNG Imports, Japan and South Korea Decline
August 19 | Energy Information Administration
What is the Northwest Passage?
August 19 | Geology.com
Nigeria: Sharp Increase in Crude Oil Disruptions to 750,000 b/d
August 18 | Energy Information Administration
Video: The Van Allen Belts
August 18 | Los Alamos National Lab on YouTube
The Demand for Silver Is Up
August 18 | Mining.com
The Many Uses of Silver
August 18 | Geology.com
The Hunt for Antarctic Meteorites
August 18 | Los Alamos National Lab on YouTube
Volcanic Air Pollution Over the Island of Hawai
August 18 | United States Geological Survey
World Record Gold Crystal Studied at Los Alamos
August 18 | Los Alamos National Lab on YouTube
Realgar and Orpiment
August 18 | Geology.com
Energy-Related CO2 Emissions From Natural Gas Surpass Coal
August 17 | Energy Information Administration
Dzongu Landslide: Overtopped But Not Drained
August 17 | The Landslide Blog
A Major Tailings Dam Failure in China
August 17 | The Landslide Blog
How Fertilizers Drive Food Prices
August 17 | Mining.com
A Guide to the Geology of the Flagstaff Area
August 16 | Arizona Geological Survey
U.S. Crude Exports Are Increasing and Reaching More Destinations
August 16 | Energy Information Administration
Mapping Hot Surface Temperatures
August 16 | NASA Earth Observatory
NASA: July Was the Hottest Month in Recorded History
August 16 | Portland Press Herald
Cold Temperatures Set Off Slow-Moving Landslides
August 16 | EOS Earth and Space Science News
Free Printable Polar and Ternary Graph Paper
August 16 | WaterproofPaper.com (affiliated with Geology.com)
Shale Gas Drives World Natural Gas Production Growth
August 15 | Energy Information Administration
Raising Awareness About Arsenic in Well Water
August 15 | The Plainspoken Scientist
India: A Worrying Valley-Blocking Landslide
August 15 | The Landslide Blog
China: The Jishi Gorge Landslide
August 15 | The Landslide Blog
Moon Express Plans a Mission to the Moon
August 15 | EOS Earth and Space Science News
What Steers the Largest Current of Antarctica?
August 15 | EOS Earth and Space Science News
Mapping Zika Risk Across the World
August 14 | Wired Science
Making Invisible Gold Visible
August 14 | Curtin University
Volcanic Eruption Masked Acceleration in Sea Level Rise
August 13 | National Science Foundation
Does Water Vapor from Volcanic Eruptions Cause Climate Warming?
August 13 | EOS Earth and Space Science News
Overcoming Climate Change Apathy
August 13 | EOS Earth and Space Science News
Extratropical Cyclone Over Hudson Bay
August 12 | NASA Earth Observatory
Total Employment in the Geosciences, 2014
August 12 | American Geosciences Institute
World Tight Oil Production to More Than Double from 2015 to 2040
August 12 | Energy Information Administration
The Many Uses of Gold
August 12 | Geology.com
Controlling Earthquakes Through Regulation
August 12 | NPR State Impact
Earthquake Risk and the Vancouver Condo Boom?
August 12 | The Globe and Mail
What to Do if You Smell Natural Gas
August 12 | NBC Washington
Natural Gas: The Secret Friend of Wind and Solar
August 12 | The Washington Post
Earth Science Week August Newsletter
August 11 | Earth Science Week
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