Types of Maps - Explore some of the most popular types of maps that have been made.

Minerals - Descriptions, photos, articles, properties and uses for common minerals.

Geodes look like ordinary rocks on the outside but can be spectacular inside!

Labradorite is a feldspar mineral that sometimes exhibits an iridescent play-of-color.

Petrified Wood is a fossil that forms when silica replaces and infills the cavities of wood.

Fool*s Gold is a name used for pyrite when its brassy color fools people looking for gold.

Names Used for Great Britain, British Isles, United Kingdom, and Ireland. What they mean.

Mohs Hardness Scale is a set of reference minerals used for classroom hardness testing.

Tallest Mountain - Everest has rivals in tallness, altitude and distance to the center of Earth.

Expansive Soil causes more damage than floods, hurricanes & tornadoes combined.

Wall Maps - Wall maps of the world, continents, states and the USA.

Kyanite is a metamorphic mineral used to make porcelain, abrasive products and gems.

The East Africa Rift System - The extensive fault system that is tearing Africa apart.

Diamond Production leaders include: Botswana, Russia, Angola and Canada.

Geology Tools Rock hammers, field bags, hand lenses, maps, hardness picks, gold pans.

Largest Hurricanes Are they determined by wind speed, value of damage, most deaths?

Geology News - News about geology, earth science, energy, and more. Updated daily.

Rock & Mineral Kits The best way to learn about rocks and minerals is with specimens!

Ethiopian Opal - The new opal heavyweight that might give Australia a run.

How Are Hurricanes Named? There is a plan for naming tropical storms.

Homeowners Insurance might not cover earthquake, hurricane and other geohazard damage.

Free Google Earth software allows you to browse seamless world satellite images. Free.

Rocks - Galleries of igneous, sedimentary and metamorphic rock photos with descriptions.

What is Geology? The study of Earth materials, structures, processes and life over time.

Colored Diamonds are diamonds with a noticeable body color. They can sell for over $1M/carat.

Storm Surge can be the most damaging and deadly aspect of a hurricane.

Topo Maps - The DeLorme Atlas is an entire state of topo maps in one convenient book.

Hardness Picks - Test for hardness with precise and easy-to-use hardness picks.

Ant Hill Garnets - tiny gems that ants haul to the surface and discard on their anthill. Honest!

Teacher Resources - K-12 resources for teaching about earth science.

What Is The Moho? The Mohorovicic Discontinuity is the mantle/crust boundary.

Copper Kills COVID-19 and many other pathogens to limit the spread of disease.

What is a Geyser? Photos and information about geysers in many parts of the world.

Olivine - Abundant in Earth*s mantle. A constituent of meteorites. The gem peridot.

Lightning Strikes Map by NASA shows the worldwide distribution of lightning activity.

Portable UV Lamp - Short and long wave UV for fluorescent mineral viewing.

Diamonds - Learn about the properties of diamond, its many uses, and diamond discoveries.

Emerald is the most popular green gemstone in the United States and most of the world.

California Earthquake Maps - A collection of isoseismal maps for earthquakes in California.

Mineral Rights - Who owns the minerals under your land? Who wants to buy them?

Cave of the Hands is a cave where ancient people painted hands about 9000 years ago.

The Rock Used to Make Beer - Geologists are beer experts and should know about this rock.

World*s Largest Diamonds Records for the largest rough, faceted and carbonado diamond.

Meteorites - Rocks that were once parts of planets or large asteroids.

Rare Earths - Special materials used in electronics, defense, medical & many other products.

World Record Lightning - this lake has more lightning than any other place in the world.

Quartzite is metamorphic rock formed when sandstone is subjected to heat and pressure.

Gemstones - Colorful images and articles about diamonds and colored stones.

Granite - The intrusive igneous rock that underlies continents and countertops.

Turquoise - A bluish-green gem material that has been used for over 6000 years.

Bear Attacks - Knowing how to react to a bear encounter or attack could save your life.

100+ Gems - Photos of over 100 beautiful gems ranging from the popular to the obscure.

Chalcopyrite - The most important ore of copper for over five thousand years.

Plate Tectonics - Articles and maps about plate tectonics and the interior of Earth.

Largest Earthquake ever recorded - Magnitude 9.5. Chile, 1960.

Extraterrestrial Gems - A number of materials from space are used as attractive gems.

Shale - The rock that has quickly transformed the oil and gas industry.

Fluorescent Minerals and rocks glow with spectacular colors under ultraviolet light.

The Unsung Mineral Hero - and the commodity upon which almost everything is built.

Pictures of Opal - A collection of different types of opal from all around the world and Mars too!

Birthstones are gems assigned to the month of a person*s birth. They are popular gifts in the U.S.

Blue Flames and the largest highly acidic lake in the world at Kawah Ijen Volcano.

Mined in America - Small mines in the United States produce a diversity of beautiful gemstones.

The Uses of Marble are numerous and diverse. You will be surprised by how it is used.

Rhyolite An extrusive igneous rock with a high silica content, produced from granitic magma.

Solar System Volcanoes - Earth is not the only location of volcanic activity.

Gold Pans and Panning Kits - classifiers, snuffer bottles. Learn how to pan for Gold.

Tallest Tsunami - A wave with a run-up height of 1720 feet occurred in Lituya Bay, Alaska.

Grape Agate is a popular mineral specimen with the color and the shape of a bunch of grapes.

Landslides A USGS fact sheet about landslides and events that trigger them.

Mars Meteorites Mars rovers have found dozens of meteorites traveling around the red planet.

Rock Tumblers - All about rock tumblers and rock tumbling. Read before you buy a tumbler.

Hand Lens A 10-power folding magnifier in a metal case. A frequently used lab and field tool.

US Diamond Mines - Did you know that diamonds have been mined in the United States?

Peridotite is a chromite host rock, a source of diamonds and a possible carbon dioxide sink.

Coquina - A porous limestone composed almost entirely of fossil debris.

Volcanic Explosivity - Rating volcanic eruptions based upon the volume of tephra ejected.

Volcanoes - Articles about volcanoes, volcanic hazards and eruptions past and present.

What is the San Andreas Fault? Map, photos and description of the fault.

Sliding Rocks Mystery - What causes these rocks to slide across a playa in Death Valley?

Molybdenite is the primary ore of molybdenum which is used in superalloys and as a lubricant.

Obsidian - the volcanic rock that cools so quickly that it becomes a natural glass.

Frac Sand - A specialty sand used to maintain porosity in hydraulic fracturing.

Lapis Lazuli - a metamorphic rock and the most popular blue opaque gemstone in history.

What Is Earth Science? The study of Earth and its neighbors in space. Learn more!

Ticks are a problem for geologists in some areas. Learn to recognize and avoid them.

Soapstone is a metamorphic rock with properties that make it suitable for a variety of projects.

Corundum is the third hardest mineral. It is also the mineral of ruby and sapphire.

Ruby and Sapphire are the 2nd and 3rd most popular colored stones in the United States.

Geology Books - A variety of books for reference, field trips, reading and more.

Tanzanite was unknown until a few decades ago but it has erupted into wide popularity.

Mount Vesuvius - geology, history, maps, facts and more about the Vesuvius eruptions.

Hematite - The most important ore of iron. A source of mineral pigment since prehistory.

Gifts That Rock - What are the most popular gift items in the jpum.net store?

Rock-Forming Minerals - most of Earth*s crust is made-up of a small number of minerals.

Range of Bear Species - Where you might encounter different types of bears.

Chalk is a variety of limestone formed from fine-grained marine sediment known as ooze.

Deepest Point in the Ocean The deepest point in the ocean is in the Mariana Trench.

The Next Hawaiian Island could be growing in the Pacific Ocean right now. Its name is Lo'ihi.

Debris Flows are moving masses of loose mud, sand, soil, rock and water.

Cinnabar - the only important ore of mercury. Used in pigments until its toxicity was realized.

Gem Silica is a blue chalcedony colored by copper. It is the rarest and most valuable chalcedony.

Types of Volcanic Eruptions - A description of the most common eruption types.

Mount Etna - The most active volcano in Europe continues an eruption that started in 2001.

Crater of Diamonds - The only diamond mine in the world where you can be the miner.

Fire Opal is a transparent to translucent opal with a yellow, orange or red background color.

Horizontal Drilling has opened new resources and significantly improved productivity.

Angel Falls in Venezuela is the tallest waterfall in the world - it is 3212 feet tall.

Herkimer Diamonds Doubly-terminated quartz crystals used as specimens and gems.

The Science of Fireworks Learn how the colors and shapes are created.

Tourmaline - an extremely colorful mineral and gem material.

Rock Art - People have been marking on rocks for thousands of years.

Rhodochrosite - a manganese mineral used as an ore, a pink gem and an ornamental stone.

Methane Hydrate deposits contain more fuel value than all other fossil fuels combined.

What is a Maar? The second most common volcanic landscape feature on Earth.

Sand is a diverse material. This gallery includes photos of sand from around the world.

Mount Cleveland is an active volcano in the Aleutian Islands and a threat to air traffic.

Charoite is a purple silicate mineral, found only in Russia, used as a gem material.

The Acid Test - Geologists use dilute hydrochloric acid to identify carbonate minerals.

Largest Volcano - That title is shared by Tamu Massif, Mauna Kea and Ojos del Salado.

Field Courses - Over 80 field courses for undergraduate geology students.

Ilmenite - The primary ore of titanium and source of most titanium dioxide.

Waterproof Paper - Don't take chances with your field notes and maps. Use waterproof paper.

Know the Rules before removing rocks, fossils or minerals from public or private property.

Hydraulic Fracturing increases well yield by fracturing the reservoir rock with fluid injection.

Mineraloids are amorphous naturally-occurring inorganic solids that lack crystallinity.

Talc is a soft mineral used in cosmetics, paper, paint, ceramics and many other products.

Diamond Misconception - Many people think that diamonds form from coal. Not True!

Coal Through a Microscope - Coal is more than a black rock. It is THE most interesting rock.

Novarupta - The most powerful volcanic eruption of the 20th century occurred in the U.S.A.

Morganite is an orange to pink gemstone, a variety of beryl, that is growing rapidly in popularity.

Salt Domes - Salt structures that are often associated with oil and natural gas accumulations.

The Many Uses of Gold - Unique properties make gold one of the most useful metals.

Zircon is the primary ore of zirconium and a gemstone that is available in many colors.

Azurite - Used as an ore of copper, a pigment, ornamental stone and gem material.

Utica Shale is a major source of oil, natural gas and natural gas liquids in PA, OH and WV.

How did the Hawaiian Islands Form? The power of a moving plate over a stationary hot spot.

Pyroxene Minerals are a group of chain silicate minerals found in igneous and metamorphic rocks.

Diabase - the rock selected for Stonehenge and transported 240 miles in 2100 BC.

Phytoplankton Blooms - Satellite images of explosive marine plankton blooms.