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Geology of GemsGeology of Gems Geology of Gems - The first comprehensive book on the geology of gem deposits. Dowsingdowsing Dowsing is a method used to find underground water that is rejected by most geologists. Cave of the HandsCave of the Hands Cave of the Hands is a cave where ancient people painted hands about 9000 years ago.
TurquoiseTurquoise Turquoise - A bluish-green gem material that has been used for over 6000 years. Homeowners InsuranceHomeowners Insurance Homeowners Insurance usually does not cover the most common geologic hazards. HematiteHematite on Mars Hematite - The most important ore of iron. A source of mineral pigment since prehistory.
Expansive SoilExpansive Soil Expansive Soil Causes more damage than floods, hurricanes & tornadoes combined. Geology ToolsGeology Tools Geology Tools - Rock hammers, field bags, hand lenses, maps, hardness picks, gold pans. 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. What is Geology?What is Geology? What is Geology? - The study of Earth materials, structures, processes and life over time.
LabradoriteLabradorite Labradorite is a feldspar mineral that sometimes exhibits an iridescent play-of-colors 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!
US Diamond MinesUS Diamond Mines US Diamond Mines - Did you know that diamonds have been mined in the United States? Quartzitequartzite Quartzite is metamorphic rock formed when sandstone is subjected to heat and pressure. Crushed StoneCrushed Stone Crushed Stone - About four tons per person is used each year in the United States.
AzuriteAzurite Azurite - Used as an ore of copper, a pigment, ornamental stone and gem material. 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.
Gold PansGold Pans Gold Pans and Panning Kits - classifiers, snuffer bottles. Pans sized for kids to Goliath. 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.
MeteoritesMeteorites Meteorites - Rocks that were once parts of planets or large asteroids. Utica Well DensityUtica wells Utica Well Density A surprising density of horizontal wells in the Utica Shale of Ohio. 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.
Deepest LakeDeepest Lake in the World Deepest Lake in the World Lake Baikal in southern Russia is the deepest lake in the World. Hand LensHand Lens Hand Lens A 10-power folding magnifier in a metal case. A frequently used lab and field tool. EmeraldEmerald Emerald is the most popular green gemstone in the United States and most of the world.
PeridotitePeridotite Peridotite is a chromite host rock, a source of diamonds and a possible carbon dioxide sink. 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.
Mineral HardnessMohs Hardness Test Mohs Hardness Scale is a set of reference minerals used for classroom hardness testing. What Are Minerals?What Are Minerals? Minerals are the building blocks of our society. We use items made with them every day. SunstoneSunstone Sunstone - A gem feldspar with aventurescence caused by light reflecting from platy inclusions.
What is LNG?What is LNG? What is LNG? The use of LNG as an energy source is growing rapidly. Learn more about LNG. Mount EtnaMount Etna Mount Etna - The most active volcano in Europe continues an eruption that started in 2001. 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. 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.
ChalcopyriteChalcopyrite Chalcopyrite - The most important ore of copper for over five thousand years. Methane HydrateMethane Hydrate Methane Hydrate deposits contain more fuel value than all other fossil fuels combined. 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. Wall MapsWall Maps Wall Maps - Wall maps of the world, continents, states and the USA. Crater of DiamondsCrater of Diamonds Crater of Diamonds - The only diamond mine in the world where you can be the miner.
Mineral RightsMineral Rights Mineral Rights Who owns the minerals under your land? Who wants to buy them? RhodoniteRhodonite Rhodonite - a manganese silicate used as a minor ore of manganese and as a gemstone. Types Of EruptionsTypes Of Eruptions Types of Volcanic Eruptions - A description of the most common eruption types.
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. 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.
Uses of MarbleUses of Marble The Uses of Marble are numerous and diverse. You will be surprised by how it is used. 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.
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. Sea Level Rise MapsSea Level Rise Maps Sea Level Rise Maps - See what will be flooded as sea level rises.
Ruby and Sapphireruby and sapphire Ruby and Sapphire are the 2nd and 3rd most popular colored stones in the United States. The Brewery Rock ?diatomite The Rock Used to Make Beer - Geologists are beer experts and should know about this rock. 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. RocksRocks Rocks - Galleries of igneous, sedimentary and metamorphic rock photos with descriptions. Arctic Seafloor MapArctic Ocean Seafloor Map Arctic Ocean Seafloor Map The ridges, basins, shelves and rifts defining the Arctic seafloor.
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 TeachersDonorsChoose.org DonorsChoose.org allows you to support science projects proposed by K-12 teachers.
Gems from SpaceGems from Space Extraterrestrial Gems - A number of materials from space are used as attractive gems. Coal Close UpCoal through a microscope Coal Through a Microscope - Coal is more than a black rock. It is THE most interesting rock. The Acid TestThe Acid Test The Acid Test - Geologists use dilute hydrochloric acid to identify carbonate minerals.
Asteroid Impact MapAsteroid Impact Map Asteroid Impact Map - Explore fifty of the most obvious asteroid impact craters on Earth. 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.
Largest VolcanoesLargest Volcanoes Largest Volcano - That title is shared by Tamu Massif, Mauna Kea and Ojos del Salado. 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.
Rock TumblersRock Tumblers Rock Tumblers - All about rock tumblers and rock tumbling. Read before you buy a tumbler. Antarctic Meteoriteshunting meteorites in Antarctica The Richest Meteorite Field - More meteorites found here than anywhere else on Earth. 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. ObsidianObsidian Obsidian - the volcanic rock that cools so quickly that it becomes a natural glass.
What Is The Moho?What Is The Moho? What Is The Moho? Learn about the Mohorovicic Discontinuity - the mantle/crust boundary. GemstonesGemstones Gemstones - Colorful images and articles about diamonds and colored stones. Sliding RocksSliding Rocks Sliding Rocks Mystery - What causes these rocks to slide across a playa in Death Valley?
Geology of Heliumhelium Helium is a byproduct of the natural gas industry. Its most important use is in MRI. Land Below Sea LevelLand Below Sea Level Land Below Sea Level - Did you know that dozens of land locations are below sea level? Olivine Rain?Olivine Rain? Olivine Rain? Spitzer Telescope discovered a rain of olivine crystals on protostar HOPS-68.
San Andreas Fault MapSan Andreas Fault Map Google Map of the San Andreas Fault Zoom in to see the fault trace on satellite images. What is a Geyser?What is a Geyser? What is a Geyser? Photos and information about geysers in many parts of the world. Ant Hill GarnetsAnt Hill Garnets Ant Hill Garnets are tiny garnets that ants haul to the surface and discard on their anthill. Honest!
June 6, 1912Novarupta June 6, 1912 - The most powerful volcanic eruption of the 20th century. 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.
GraniteGranite Granite - The intrusive igneous rock that underlies continents and countertops. Bear AttacksBear Attacks Bear Attacks - Knowing how to react to a bear encounter or attack could save your life. Salt DomesSalt Domes Salt Domes - Salt structures that are often associated with oil and natural gas.
RhyoliteRhyolite Rhyolite An extrusive igneous rock with a high silica content, produced from granitic magma. Teacher ResourcesTeacher Resources Teacher Resources - K-12 resources for teaching about earth science. What are Glaciers?What are Glaciers? What are Glaciers? Learn how glaciers form, flow, advance, retreat, and change over time.
Facts About CopperCopper Facts About Copper - Information about copper uses, production, resources and more. MisconceptionDiamonds from Coal Diamond Misconception - Lots of people think that diamonds form from coal. Not True! 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. Watch out for Ticks!ticks Ticks are a problem for geologists in some areas. Learn to recognize and avoid them. Oil Fields from Spacenatural gas flaring Oil Fields from Space - Night views of Earth show the distribution of oil field activity.
Earthquake MapsCalifornia Earthquake Maps California Earthquake Maps A collection of isoseismal maps for earthquakes in California. 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!
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.
     
Geology in the News
Saudis Choose Higher Prices Over Free Oil Markets
September 29 | Bloomberg Business
Where Primordial Galaxies Lurk
September 29 | NASA
China: Rizhao Rockslide Runs Over a New Public Park
September 29 | The Landslide Blog
Rift Photos from Iceland
September 29 | Magma Cum Laude
Diamonds: Nothing Lasts Forever
September 29 | Financial Times
Satellite Images of Flooding in Iowa
September 28 | NASA Earth Observatory
Ancient Fossils Reveal a Sticky Dinosaur Death Trap
September 28 | The Washington Post
China Expected to Account for Over 50% of World Nuclear Growth Through 2040
September 28 | Energy Information Administration
Washington: Improved Landslide Hazard Maps for Oso Area
September 28 | Maple Valley Reporter
Hoba: The World*s Largest Meteorite
September 27 | Geology.com
Australia Is Drifting So Fast GPS Can*t Keep Up
September 27 | National Geographic
Petra*s Boss On Mining Diamonds
September 27 | The Telegraph
The Rise and Fall of Kilauea*s Summit Lava Lake
September 26 | Hawaii Tribune Herald
Platinum Market Could Face Shortage
September 26 | Mining.com
Earth Science Week: October 9-15, 2016
September 26 | EarthScienceWeek.org
Congressional Caucus for Earth and Space Sciences
September 26 | EOS Earth and Space Science News
Excavators Rescuing Wildlife
September 26 | Mining.com
Gold: The Top-Explored Commodity
September 26 | Mining.com
China Begins Testing the World*s Largest Radio Telescope
September 26 | Christian Science Monitor
Video: Piz Cengalo Landslide (Switzerland)
September 25 | The Landslide Blog
A Vision to Observe Earth
September 25 | United States Geological Survey
Probing the History of New Zealand*s Orakei Maar
September 25 | EOS Earth and Space Science News
What is a Maar ?
September 25 | Geology.com
We Need a New Definition for *Magma*
September 25 | EOS Earth and Space Science 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 | Mining.com
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 | KCAW.org
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 | Geology.com
Many Types of Rock Art
September 21 | Geology.com
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 | FuelFix.com
China Will Need a Lot More Uranium
September 20 | Mining.com
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 | Geology.com
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 | Mining.com
The Many Uses of Gold
September 18 | Geology.com
Three New Oil Sands Projects in Canada
September 18 | Mining.com
What Are Oil Sands?
September 18 | Geology.com
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
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