Ukraine is an independent state in eastern Europe that shares a border with Russia to its east.
Soapstone is a metamorphic rock with properties that make it suitable for a variety of projects.
Ant Hill Garnets - tiny gems that ants haul to the surface and discard on their anthill. Honest!
Dig for Gems at dozens of sites across the United States. Keep what you find at most locations.
Crystal Habit is the external shape displayed by a crystal or an aggregate of crystals.
Peridotite is a chromite host rock, a source of diamonds and a possible carbon dioxide sink.
Sand from Around the World . A photo gallery showing the diversity of the material we call "sand".
Colored Diamonds are diamonds with a noticeable body color. They can sell for over $1M/carat.
Strawberry Quartz is a red to pink quartz with inclusions that look like strawberry seeds.
Lightning Strikes Map by NASA shows the worldwide distribution of lightning activity.
Birthstones are gems assigned to the month of a person*s birth. They are popular gifts in the U.S.
The East Africa Rift System - The extensive fault system that is tearing Africa apart.
Free Google Earth software allows you to browse seamless world satellite images. Free.
Rock & Mineral Kits The best way to learn about rocks and minerals is with specimens!
The Rock Used to Make Beer - Geologists are beer experts and should know about this rock.
Pictures of Opal - A collection of different types of opal from all around the world and Mars too!
100+ Gems - Photos of over 100 beautiful gems ranging from the popular to the obscure.
Troglobites are creatures that have adapted to a permanent life in the darkness of a cave.
Fluorescent Minerals and rocks glow with spectacular colors under ultraviolet light.
Gem Silica is a blue chalcedony colored by copper. It is the rarest and most valuable chalcedony.
Fool*s Gold is a name used for pyrite when its brassy color fools people looking for gold.
Hudson Nico Mid Rise Super Skinny - The intrusive igneous rock that underlies continents and countertops.
Ethiopian Opal - The new opal heavyweight that might give Australia a run.
Tallest Mountain - Everest has rivals in tallness, altitude and distance to the center of Earth.
Petrified Wood is a fossil that forms when silica replaces and infills the cavities of wood.
What is LNG? Liquefied Natural Gas. The gas is condensed into a liquid for efficient transport.
Names Used for Great Britain, British Isles, United Kingdom, and Ireland. What they mean.
The Green River Formation is one of the most famous rock units in the world for its fossils.
Curling Stones are made from a special type of granite, found at just a few locations worldwide.
Rhodochrosite - a manganese mineral used as an ore, a pink gem and an ornamental stone.
Crater of Diamonds - The only diamond mine in the world where you can be the miner.
World*s Largest Diamonds Records for the largest rough, faceted and carbonado diamond.
Grape Agate is a popular mineral specimen with the color and the shape of a bunch of grapes.
Mined in America - Small mines in the United States produce a diversity of beautiful gemstones.
Geology Tools - Rock hammers, field bags, hand lenses, maps, hardness picks, gold pans.
World Record Lightning - this lake has more lightning than any other place in the world.
Rhyolite An extrusive igneous rock with a high silica content, produced from granitic magma.
The Acid Test - Geologists use dilute hydrochloric acid to identify carbonate minerals.
Sliding Rocks Mystery - What causes these rocks to slide across a playa in Death Valley?
What Is Earth Science? The study of Earth and its neighbors in space. Learn more!
Volcanic Explosivity - Rating volcanic eruptions based upon the volume of tephra ejected.
Rock Tumblers - All about rock tumblers and rock tumbling. Read before you buy a tumbler.
Copper is a metal used in coins, electronics, pipes, wiring, motors, alloys and many other products.
Mohs Hardness Scale is a set of reference minerals used for classroom hardness testing.
Extraterrestrial Gems - A number of materials from space are used as attractive gems.
What is Geology? The study of Earth materials, structures, processes and life over time.
What is the San Andreas Fault? Map, photos and description of the fault.
The Doorway to Hell is a flaming sinkhole seeping natural gas that has been burning for decades.
Angel Falls in Venezuela is the tallest waterfall in the world - it is 3212 feet tall.
Cinnabar - the only important ore of mercury. Used in pigments until its toxicity was realized.
Mars Meteorites Mars rovers have found dozens of meteorites while exploring the red planet.
Morganite is an orange to pink gemstone, a variety of beryl, that is growing rapidly in popularity.
Cave of the Hands is a cave where ancient people painted hands about 9000 years ago.
Hand Lens A 10-power folding magnifier in a metal case. A frequently used lab and field tool.
Where Are the Canary Islands? Off the northwest coast of Africa, 60 miles west of Morocco.
Largest Hurricanes Are they determined by wind speed, value of damage, most deaths?
Largest Volcano - That title is shared by Tamu Massif, Mauna Kea and Ojos del Salado.
Ruby and Sapphire are the 2nd and 3rd most popular colored stones in the United States.
Teacher Resources - K-12 resources for teaching about earth science.
Tallest Tsunami - A wave with a run-up height of 1720 feet occurred in Lituya Bay, Alaska.
Know the Rules before removing rocks, fossils or minerals from public or private property.
California Earthquake Maps - A collection of isoseismal maps for earthquakes in California.
Fire Opal is a transparent to translucent opal with a yellow, orange or red background color.
Hot and Delicious Maxi Boho Dress - Special materials used in electronics, defense, medical & many other products.
How did the Hawaiian Islands Form? The power of a moving plate over a stationary hot spot.
Hawaii*s Next Island could be growing in the Pacific Ocean right now. Its name is Lo*ihi.
Novarupta - The most powerful volcanic eruption of the 20th century occurred in the U.S.A.
Homeowners Insurance might not cover earthquake, hurricane and other geohazard damage.
Coal Through a Microscope - Coal is more than a black rock. It is THE most interesting rock.
Waterproof Paper - Don't take chances with your field notes and maps. Use waterproof paper.
Ticks are a problem for geologists in some areas. Learn to recognize and avoid them.
Deepest Point in the Ocean The deepest point in the ocean is in the Mariana Trench.
Utica Shale is a major source of oil, natural gas and natural gas liquids in PA, OH and WV.
Talc is a soft mineral used in cosmetics, paper, paint, ceramics and many other products.
Mount Etna - The most active volcano in Europe continues an eruption that started in 2001.
Map of the Oceans - showing the Atlantic, Pacific, Indian, Arctic, and Southern Oceans.