Categories
Where Is Ukraine?
Ukraine is an independent state in eastern Europe that shares a border with Russia to its east.
Colored Diamonds
Colored Diamonds are diamonds with a noticeable body color. They can sell for over $1M/carat.
Lightning Strikes Map
Lightning Strikes Map by NASA shows the worldwide distribution of lightning activity.
Strawberry Quartz
Strawberry Quartz is a red to pink quartz with inclusions that look like strawberry seeds.
Great Rift Valley
The East Africa Rift System - The extensive fault system that is tearing Africa apart.
Birthstones
Birthstones are gems assigned to the month of a person*s birth. They are popular gifts in the U.S.
Rock and Mineral Kits
Rock & Mineral Kits The best way to learn about rocks and minerals is with specimens!
Troglobites
Troglobites are creatures that have adapted to a permanent life in the darkness of a cave.
Google Earth - Free
Free Google Earth software allows you to browse seamless world satellite images. Free.
What is LNG?
What is LNG? Liquefied Natural Gas. The gas is condensed into a liquid for efficient transport.
Tourmaline
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Tourmaline - an extremely colorful mineral and gem material.
What is a Maar?
Holiday Pet PjsWhat is a Maar? The second most common volcanic landscape feature on Earth.
100+ Gemstones
100+ Gems - Photos of over 100 beautiful gems ranging from the popular to the obscure.
The Brewery Rock ?
The Rock Used to Make Beer - Geologists are beer experts and should know about this rock.
Tallest Mountain
Tallest Mountain - Everest has rivals in tallness, altitude and distance to the center of Earth.
Fool*s Gold
Fool*s Gold is a name used for pyrite when its brassy color fools people looking for gold.
Fluorescent Minerals
Fluorescent Minerals and rocks glow with spectacular colors under ultraviolet light.
The British Isles
Names Used for Great Britain, British Isles, United Kingdom, and Ireland. What they mean.
Opals
Pictures of Opal - A collection of different types of opal from all around the world and Mars too!
Petrified Wood
Petrified Wood is a fossil that forms when silica replaces and infills the cavities of wood.
Gem Silica
Gem Silica is a blue chalcedony colored by copper. It is the rarest and most valuable chalcedony.
Curling Stones
Curling Stones are made from a special type of granite, found at just a few locations worldwide.
What Is Earth Science?
What Is Earth Science? The study of Earth and its neighbors in space. Learn more!
Largest Diamonds
World*s Largest Diamonds Records for the largest rough, faceted and carbonado diamond.
Ant Hill Garnets
Ant Hill Garnets - tiny gems that ants haul to the surface and discard on their anthill. Honest!
Hawaiian Hot Spot
How did the Hawaiian Islands Form? The power of a moving plate over a stationary hot spot.
Grape Agate
Grape Agate is a popular mineral specimen with the color and the shape of a bunch of grapes.
Crater of Diamonds
Crater of Diamonds - The only diamond mine in the world where you can be the miner.
Sliding Rocks
Sliding Rocks Mystery - What causes these rocks to slide across a playa in Death Valley?
Record Lightning
World Record Lightning - this lake has more lightning than any other place in the world.
Geology Tools
Geology Tools - Rock hammers, field bags, hand lenses, maps, hardness picks, gold pans.
Green River Fossils
The Green River Formation is one of the most famous rock units in the world for its fossils.
Volcanoes
Pool Basketball HoopVolcanoes - Articles about volcanoes, volcanic hazards and eruptions past and present.
Tallest Waterfall
Angel Falls in Venezuela is the tallest waterfall in the world - it is 3212 feet tall.
Rare Earth Elements
Rare Earths - Special materials used in electronics, defense, medical & many other products.
Soapstone
Soapstone is a metamorphic rock with properties that make it suitable for a variety of projects.
Chalcopyrite
Betta AquariumChalcopyrite - The most important ore of copper for over five thousand years.
The Acid Test
The Acid Test - Geologists use dilute hydrochloric acid to identify carbonate minerals.
Fire Opal
Fire Opal is a transparent to translucent opal with a yellow, orange or red background color.
Largest Volcanoes
Largest Volcano - That title is shared by Tamu Massif, Mauna Kea and Ojos del Salado.
Crystal Habit
Crystal Habit is the external shape displayed by a crystal or an aggregate of crystals.
Map of the Oceans
Map of the Oceans - showing the Atlantic, Pacific, Indian, Arctic, and Southern Oceans.
Copper
Copper is a metal used in coins, electronics, pipes, wiring, motors, alloys and many other products.
Mars Meteorites
Mars Meteorites Mars rovers have found dozens of meteorites while exploring the red planet.
Rhyolite
Rhyolite An extrusive igneous rock with a high silica content, produced from granitic magma.
Ruby and Sapphire
Ruby and Sapphire are the 2nd and 3rd most popular colored stones in the United States.
Hand Lens
Hand Lens A 10-power folding magnifier in a metal case. A frequently used lab and field tool.
What is Geology?
What is Geology? The study of Earth materials, structures, processes and life over time.
Don*t Go To Jail
Know the Rules before removing rocks, fossils or minerals from public or private property.
Waterproof Paper
Waterproof Paper - Don't take chances with your field notes and maps. Use waterproof paper.
Gems from Space
Extraterrestrial Gems - A number of materials from space are used as attractive gems.
Mineral Hardness
Mohs Hardness Scale is a set of reference minerals used for classroom hardness testing.
Watch out for Ticks!
Ticks are a problem for geologists in some areas. Learn to recognize and avoid them.
Rock Tumblers
Rock Tumblers - All about rock tumblers and rock tumbling. Read before you buy a tumbler.
Coal Close Up
Coal Through a Microscope - Coal is more than a black rock. It is THE most interesting rock.
Tallest Tsunami
Tallest Tsunami - A wave with a run-up height of 1720 feet occurred in Lituya Bay, Alaska.
American Gemstones
Mined in America - Small mines in the United States produce a diversity of beautiful gemstones.
Cave of the Hands
Cave of the Hands is a cave where ancient people painted hands about 9000 years ago.
Misconception
Team USA Hello Kitty Plush KeychainDiamond Misconception - Many people think that diamonds form from coal. Not True!
Canary Islands
Where Are the Canary Islands? Off the northwest coast of Africa, 60 miles west of Morocco.
Cinnabar
Cinnabar - the only important ore of mercury. Used in pigments until its toxicity was realized.
Morganite
Morganite is an orange to pink gemstone, a variety of beryl, that is growing rapidly in popularity.
Greatest Ocean Depth
Deepest Point in the Ocean The deepest point in the ocean is in the Mariana Trench.
Utica Shale
Utica Shale is a major source of oil, natural gas and natural gas liquids in PA, OH and WV.
Volcanic Explosivity
Volcanic Explosivity - Rating volcanic eruptions based upon the volume of tephra ejected.
Underwater Volcano
Hawaii*s Next Island could be growing in the Pacific Ocean right now. Its name is Lo*ihi.
Largest Hurricanes
Largest Hurricanes Are they determined by wind speed, value of damage, most deaths?
Rhodochrosite
Rhodochrosite - a manganese mineral used as an ore, a pink gem and an ornamental stone.
Mount Etna
Mount Etna - The most active volcano in Europe continues an eruption that started in 2001.
Homeowners Insurance
Homeowners Insurance might not cover earthquake, hurricane and other geohazard damage.
Peridotite
Peridotite is a chromite host rock, a source of diamonds and a possible carbon dioxide sink.
Earthquake Maps
California Earthquake Maps - A collection of isoseismal maps for earthquakes in California.
June 6th 1912
Novarupta - The most powerful volcanic eruption of the 20th century occurred in the U.S.A.
Uses of Talc
Talc is a soft mineral used in cosmetics, paper, paint, ceramics and many other products.
Darvaza Gas Crater
The Doorway to Hell is a flaming sinkhole seeping natural gas that has been burning for decades.