Geology and Earth Science News and Information


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Debris Flows
Debris Flows
Debris Flows are moving masses of loose mud, sand, soil, rock and water.
Gem Silica
Gem Silica
Gem Silica is a blue chalcedony colored by copper. It is the rarest and most valuable chalcedony.
Mineral Hardness
Mohs Hardness Test
Mohs Hardness Scale is a set of reference minerals used for classroom hardness testing.
Rock and Mineral Kits
Rock Kits
Rock & Mineral Kits The best way to learn about rocks and minerals is with specimens!
Meteorites
Meteorites
Meteorites - Rocks that were once parts of planets or large asteroids.
Geology.com News
geology news
Geology.com News contains news about geology and earth science from around the world.
Rhodonite
Rhodonite
Rhodonite - a manganese silicate used as a minor ore of manganese and as a gemstone.
Hardness Picks
hardness picks
Hardness Picks - Mohs hardness testing with precise and easy-to-use hardness picks.
Volcanic Explosivity
Volcanic Explosivity
Volcanic Explosivity - Rating volcanic eruptions based upon the volume of tephra ejected.
Rocks
Rocks
Rocks - Galleries of igneous, sedimentary and metamorphic rock photos with descriptions.
Moldavite
moldavite
Moldavite is a gem material born about 15 million years ago when a pair of asteroids struck Europe.
Wall Maps
Wall Maps
Wall Maps - Wall maps of the world, continents, states and the USA.
Gems from Space
Gems from Space
Extraterrestrial Gems - A number of materials from space are used as attractive gems.
Minerals
Minerals
Minerals - Descriptions, photos, articles, properties and uses for common minerals.
Soapstone
Soapstone
Soapstone is a metamorphic rock with properties that make it suitable for a variety of projects.
E.T. Volcanoes
Solar System Volcanoes
Solar System Volcanoes - Earth is not the only location of volcanic activity.
Geodes
Geodes
Geodes look like ordinary rocks on the outside but can be spectacular inside!
Geology Tools
Geology Tools
Geology Tools Rock hammers, field bags, hand lenses, maps, hardness picks, gold pans.
Arctic Seafloor Map
Arctic Ocean Seafloor Map
Arctic Ocean Seafloor Map - The ridges, basins, shelves and rifts defining the Arctic seafloor.
Utica Shale
Utica Shale
Utica Shale is confirmed as a major source of oil, natural gas and natural gas liquids.
Geology Dictionary
Geology Dictionary
Geology Dictionary - contains thousands of geological terms with their definitions.
Ethiopian Opal
Ethiopian opal
Ethiopian Opal - The new opal heavyweight that might give Australia a run.
Google Earth - Free
Download Google Earth Free
Free Google Earth software allows you to browse seamless world satellite images. Free.
DeLorme Atlas
DeLorme Atlas
Topo Maps - The DeLorme Atlas is an entire state of topo maps in one convenient book.
Fool*s Gold
Fool*s Gold
Fool*s Gold is a name used for pyrite when its brassy color fools people looking for gold.
Troglobites
Troglobites
Troglobites are creatures that have adapted to a permanent life in the darkness of a cave.
Obsidian
Obsidian
Obsidian - the volcanic rock that cools so quickly that it becomes a natural glass.
Antarctic Meteorites
hunting meteorites in Antarctica
The Richest Meteorite Field - More meteorites found here than anywhere else on Earth.
100+ Gemstones
colored stones
100+ Gems - Photos of over 100 beautiful gems ranging from the popular to the obscure.
Hurricane Names
Hurricane Names
How Are Hurricanes Named? There is a plan for naming tropical storms.
Crater of Diamonds
Crater of Diamonds
Crater of Diamonds - The only diamond mine in the world where you can be the miner.
Sliding Rocks
Sliding Rocks
Sliding Rocks Mystery - What causes these rocks to slide across a playa in Death Valley?
Fluorescent Minerals
Fluorescent Minerals
Fluorescent Minerals and rocks glow with spectacular colors under ultraviolet light.
The Brewery Rock ?
diatomite
The Rock Used to Make Beer - Geologists are beer experts and should know about this rock.
Geology Books
Geology Books
Geology Books - A variety of books for reference, field trips, reading and more.
What Is The Moho?
What Is The Moho?
What Is The Moho? The Mohorovicic Discontinuity is the mantle/crust boundary.
Ammolite
Ammolite
Ammolite is a fossil and a gemstone. It is shell material from fossil ammonites.
Granite
Granite
Granite - The intrusive igneous rock that underlies continents and countertops.
U.S. Gemstones
U.S. Gemstones
United States Gemstones Small mines in the U.S. produce a diversity of gemstones.
Largest Earthquake
Largest Earthquake
Largest Earthquake ever recorded - Magnitude 9.5. Chile, 1960.
What Is Earth Science?
What Is Earth Science?
What Is Earth Science? The study of Earth and its neighbors in space. Learn more!
Diamonds
Diamonds
Diamonds - Learn about the properties of diamond, its many uses, and diamond discoveries.
Gemstones
Gemstones
Gemstones - Colorful images and articles about diamonds and colored stones.
Spectacular Diamonds
Spectacular Diamonds
Spectacular Diamonds have an exceptional size, color, clarity, crystal form or other property.
Tallest Tsunami
Tallest Tsunami
Tallest Tsunami - A wave with a run-up height of 1720 feet occurred in Lituya Bay, Alaska.
Don*t Go To Jail
Don't Go To Jail
Know the Rules before removing rocks, fossils or minerals from public or private property.
Ruby and Sapphire
ruby and sapphire
Ruby and Sapphire are the 2nd and 3rd most popular colored stones in the United States.
Bear Attacks
Bear Attacks
Bear Attacks - Knowing how to react to a bear encounter or attack could save your life.
Labradorite
Labradorite
Labradorite is a feldspar mineral that sometimes exhibits an iridescent play-of-color.
Quartzite
quartzite
Quartzite is metamorphic rock formed when sandstone is subjected to heat and pressure.
Green Diamonds
Green Diamonds
Green Diamonds - one of rarest and most valuable diamond colors.
Cave of the Hands
Cave of the Hands
Cave of the Hands is a cave where ancient people painted hands about 9000 years ago.
Volcanoes
Volcanoes
Volcanoes - Articles about volcanoes, volcanic hazards and eruptions past and present.
Kilauea Eruption
Kilauea Eruption
Kilauea Eruption - photos of the 2018 eruption in the East Rift Zone of Kilauea Volcano.
Uses of Gold
Uses of Gold
The Many Uses of Gold - Unique properties make gold one of the most useful metals.
Hand Lens
Hand Lens
Hand Lens A 10-power folding magnifier in a metal case. A frequently used lab and field tool.
Facts About Copper
Copper
Facts About Copper - Information about copper uses, production, resources and more.
Rhyolite
Rhyolite
Rhyolite An extrusive igneous rock with a high silica content, produced from granitic magma.
Geology of Helium
Helium
Helium is a byproduct of the natural gas industry. Its most important use is in MRI.
Blue Flames
Blue Flames
Blue Flames and the largest highly acidic lake in the world at Kawah Ijen Volcano.
Emerald
Emerald
Emerald is the most popular green gemstone in the United States and most of the world.
Expansive Soil
Expansive Soil
Expansive Soil causes more damage than floods, hurricanes & tornadoes combined.
Great Rift Valley
Great Rift Valley
The East Africa Rift System - The extensive fault system that is tearing Africa apart.
Largest Hurricanes
Largest Hurricanes
Largest Hurricanes Are they determined by wind speed, value of damage, most deaths?
Dowsing
dowsing
Dowsing is a method used to find underground water that is rejected by most geologists.
Tanzanite
tanzanite
Tanzanite was unknown until a few decades ago but it has erupted into wide popularity.
Teacher Resources
Teacher Resources
Teacher Resources - K-12 resources for teaching about earth science.
Storm Surge
Storm Surge
Storm Surge can be the most damaging and deadly aspect of a hurricane.
Olivine
Olivine
Olivine - Abundant in Earth*s mantle. A constituent of meteorites. The gem peridot.
Rock Tumblers
Rock Tumblers
Rock Tumblers - All about rock tumblers and rock tumbling. Read before you buy a tumbler.
Uses of Talc
uses of talc
Talc is a soft mineral used in cosmetics, paper, paint, ceramics and many other products.
What are Glaciers?
What are Glaciers?
What are Glaciers? Learn how glaciers form, flow, advance, retreat, and change over time.
Zircon
Zircon
Zircon is the primary ore of zirconium and a gemstone that is available in many colors.
Hematite
Hematite on Mars
Hematite - The most important ore of iron. A source of mineral pigment since prehistory.
Ant Hill Garnets
Ant Hill Garnets
Ant Hill Garnets - tiny gems that ants haul to the surface and discard on their anthill. Honest!
Misconception
Diamonds from Coal
Diamond Misconception - Many people think that diamonds form from coal. Not True!
Earthquake Maps
California Earthquake Maps
California Earthquake Maps - A collection of isoseismal maps for earthquakes in California.
Field Courses
Field Camps
Field Courses - Over 80 field courses for undergraduate geology students.
Coal Close Up
Coal Through a Microscope
Coal Through a Microscope - Coal is more than a black rock. It is THE most interesting rock.
Sunstone
Sunstone
Sunstone - A gem feldspar with aventurescence caused by light reflecting from platy inclusions.
Rare Earth Elements
Rare Earth Elements
Rare Earths - Special materials used in electronics, defense, medical & many other products.
Herkimer Diamonds
Herkimer Diamonds
Herkimer Diamonds Doubly-terminated quartz crystals used as specimens and gems.
Rock Art
Rock Art
Rock Art - People have been marking on rocks for thousands of years.
Watch out for Ticks!
Ticks
Ticks are a problem for geologists in some areas. Learn to recognize and avoid them.
Lapis Lazuli
Lapis Lazuli
Lapis Lazuli - a metamorphic rock and the most popular blue opaque gemstone in history.
Petrified Wood
Petrified Wood
Petrified Wood is a fossil that forms when silica replaces and infills the cavities of wood.
Mount Etna
Mount Etna
Mount Etna - The most active volcano in Europe continues an eruption that started in 2001.
Mount Vesuvius
Mount Vesuvius
Mount Vesuvius - geology, history, maps, facts and more about the Vesuvius eruptions.
Peridotite
Peridotite
Peridotite is a chromite host rock, a source of diamonds and a possible carbon dioxide sink.
UV Mineral Lamp
UV Mineral Lamp
Portable UV Lamp - Short and long wave UV for fluorescent mineral viewing.
The Acid Test
The Acid Test
The Acid Test - Geologists use dilute hydrochloric acid to identify carbonate minerals.
Mount Cleveland
Mount Cleveland
Mount Cleveland is an active volcano in the Aleutian Islands and a threat to air traffic.
Homeowners Insurance
Homeowners Insurance
Homeowners Insurance might not cover the types of damage that you think it should.
Azurite
Azurite
Azurite - Used as an ore of copper, a pigment, ornamental stone and gem material.
Variscite
Variscite
Variscite is a yellowish green to bluish green mineral. It is similar to turquoise and cut as a gem.
Tourmaline
Tourmaline
Tourmaline - an extremely colorful mineral and gem material.
Dangerous Mines
Abandoned Mine Accidents
Abandoned Mine Accidents kill several people every year. Education can prevent deaths.
Shale
Shale
Shale - The rock that has quickly transformed the oil and gas industry.
Fire Opal
Fire Opal
Fire Opal is a transparent to translucent opal with a yellow, orange or red background color.
Mineral Rights
Mineral Rights
Mineral Rights - Who owns the minerals under your land? Who wants to buy them?
Hawaiian Hot Spot
Hawaiian Hot Spot
How did the Hawaiian Islands Form? The power of a moving plate over a stationary hot spot.
Types Of Eruptions
Types Of Eruptions
Types of Volcanic Eruptions - A description of the most common eruption types.
Hydraulic Fracturing
Hydraulic Fracturing
Hydraulic Fracturing increases well yield by fracturing the reservoir rock with fluid injection.
Sand
Sand
Sand is a diverse material. This gallery includes photos of sand from around the world.
Rock-Forming Minerals
Rock-Forming Minerals
Rock-Forming Minerals - most of Earth*s crust is made-up of a small number of minerals.
Uses of Marble
Uses of Marble
The Uses of Marble are numerous and diverse. You will be surprised by how it is used.
Corundum
Corundum
Corundum is the third hardest mineral. It is also the mineral of ruby and sapphire.
Rhodochrosite
Rhodochrosite
Rhodochrosite - a manganese mineral used as an ore, a pink gem and an ornamental stone.
Ilmenite
Ilmenite
Ilmenite - The primary ore of titanium and source of most titanium dioxide.
Bear Map
Bear Map
Range of Bear Species - Where you might encounter different types of bears.
What is a Maar?
What is a Maar?
What is a Maar? The second most common volcanic landscape feature on Earth.
Azurite Granite
K2 Granite
Azurite Granite ? A white granite with blue orbs of azurite. A new material from Pakistan.
Garnet
Garnet
Garnet is best known as a red gemstone. It occurs in any color and has many industrial uses.
Methane Hydrate
Methane Hydrate
Methane Hydrate deposits contain more fuel value than all other fossil fuels combined.
US Diamond Mines
US Diamond Mines
US Diamond Mines - Did you know that diamonds have been mined in the United States?
Lo'ihi Seamount
Lo'ihi Seamount
The Next Hawaiian Island could be growing in the Pacific Ocean right now. Its name is Lo'ihi.
Lightning Strikes Map
Lightning Strikes Map
Lightning Strikes Map by NASA shows the worldwide distribution of lightning activity.
Pavlof Volcano
Pavlof Volcano
Pavlof Volcano - one of the most active volcanoes in North America and a threat to air traffic.
Waterproof Paper
Waterproof Paper
Waterproof Paper - Don't take chances with your field notes and maps. Use waterproof paper.
Canadian Diamonds
Canadian Diamonds
Canadian Diamond Mines produce some of the largest and highest quality diamonds!
Vanadinite
Vanadinite
Vanadinite is an important ore of vanadium and a minor source of lead.
Pele*s Hair
Pele*s Hair
Pele*s Hair and Pele*s Tears are two unusual types of lava found at Kilauea and other volcanoes.
Tallest Geyser
Tallest Geyser
Steamboat Geyser - The world*s tallest geyser has erupted three times this year.
Turquoise
Turquoise
Turquoise - A bluish-green gem material that has been used for over 6000 years.
Landslides
Landslides
Landslides A USGS fact sheet about landslides and events that trigger them.
Mineraloids
Mineraloids
Mineraloids are amorphous naturally-occurring inorganic solids that lack crystallinity.
What is LNG?
What is LNG?
What is LNG? The use of LNG as an energy source is growing rapidly. Learn more about LNG.
Chalcopyrite
Chalcopyrite
Chalcopyrite - The most important ore of copper for over five thousand years.
What is a Geyser?
What is a Geyser?
What is a Geyser? Photos and information about geysers in many parts of the world.
Oil Fields from Space
natural gas flaring
Oil Fields from Space - Night views of Earth show the distribution of oil field activity.
Gold Pans
Gold Pans
Gold Pans and Panning Kits - classifiers, snuffer bottles. Learn how to pan for Gold.
What is Geology?
What is Geology?
What is Geology? The study of Earth materials, structures, processes and life over time.
Diamond Producers
Diamond Production
Diamond Production leaders include: Botswana, Russia, Angola and Canada.
Frac Sand
Frac Sand
Frac Sand - A specialty sand used to maintain porosity in hydraulic fracturing.
Tallest Mountain
Tallest Mountain
Tallest Mountain - Everest has rivals in tallness, altitude and distance to the center of Earth.
Kyanite
kyanite
Kyanite is a metamorphic mineral used to make porcelain, abrasive products and gems.
Record Lightning
Lake Maracaibo Lightning
World Record Lightning - this lake has more lightning than any other place in the world.
Plate Tectonics
Plate Tectonics
Plate Tectonics - Articles and maps about plate tectonics and the interior of Earth.
Oil and Gas
Oil and Gas
Oil and Gas - Articles about oil and natural gas in the US and around the world.
Opals
Opal
Pictures of Opal - A collection of different types of opal from all around the world and Mars too!
Fossils
Fossils
Fossils - Learn about fossils and discoveries around the world.
Crushed Stone
Crushed Stone
Crushed Stone - About four tons per person is used each year in the United States.
Eagle Ford Shale
Eagle Ford Shale
Eagle Ford Shale - One of the most prolific oil and gas producers in the United States.
June 6, 1912
Novarupta
June 6, 1912 - The most powerful volcanic eruption of the 20th century.
Largest Volcanoes
Largest Volcanoes
Largest Volcano - That title is shared by Tamu Massif, Mauna Kea and Ojos del Salado.
Horizontal Drilling
Horizontal Drilling
Horizontal Drilling has opened new resources and significantly improved productivity.
Salt Domes
Salt Domes
Salt Domes - Salt structures that are often associated with oil and natural gas accumulations.