Categories
Pyroxene Minerals
Pyroxene Minerals are a group of chain silicate minerals found in igneous and metamorphic rocks.
Canary Islands
Where Are the Canary Islands? Off the northwest coast of Africa, 60 miles west of Morocco.
Phytoplankton Blooms
Phytoplankton Blooms are caused by an explosive growth rate of plankton in surface waters.
Crystal Habit
Crystal Habit is the external shape displayed by a crystal or an aggregate of crystals.
Mineral Hardness
Mohs Hardness Scale is a set of reference minerals used for classroom hardness testing.
Largest Hurricanes
Largest Hurricanes Are they determined by wind speed, value of damage, most deaths?
Rock and Mineral Kits
Rock & Mineral Kits The best way to learn about rocks and minerals is with specimens!
Mount Etna
Mount Etna - The most active volcano in Europe continues an eruption that started in 2001.
The Acid Test
The Acid Test - Geologists use dilute hydrochloric acid to identify carbonate minerals.
Volcanic Explosivity
Volcanic Explosivity - Rating volcanic eruptions based upon the volume of tephra ejected.
Map of the Oceans
Map of the Oceans - showing the Atlantic, Pacific, Indian, Arctic and Southern Oceans.
Record Lightning
World Record Lightning - this lake has more lightning than any other place in the world.
Blue Flames
Gates A28 Hi-Power II BeltBlue Flames and the largest highly acidic lake in the world at Kawah Ijen Volcano.
Ruby and Sapphire
Ruby and Sapphire are the 2nd and 3rd most popular colored stones in the United States.
Tallest Tsunami
Tallest Tsunami - A wave with a run-up height of 1720 feet occurred in Lituya Bay, Alaska.
Rock Tumblers
Rock Tumblers - All about rock tumblers and rock tumbling. Read before you buy a tumbler.
Mars Meteorites
Mars Meteorites Mars rovers have found dozens of meteorites while exploring the red planet.
Cinnabar
Cinnabar - the only important ore of mercury. Used in pigments until its toxicity was realized.
Fool*s Gold
Fool*s Gold is a name used for pyrite when its brassy color fools people looking for gold.
Utica Shale
Utica Shale is a major source of oil, natural gas and natural gas liquids in PA, OH and WV.
Opals
Pictures of Opal - A collection of different types of opal from all around the world and Mars too!
Morganite
Morganite is an orange to pink gemstone, a variety of beryl, that is growing rapidly in popularity.
Watch out for Ticks!
Ticks are a problem for geologists in some areas. Learn to recognize and avoid them.
American Gemstones
Mined in America - Small mines in the United States produce a diversity of beautiful gemstones.
Google Earth - Free
Free Google Earth software allows you to browse seamless world satellite images. Free.
Underwater Volcano
Hawaii*s Next Island could be growing in the Pacific Ocean right now. Its name is Lo*ihi.
Soapstone
HODEE Rear Wiper Arm Blade Nut Set Replacement for Dodge Grand CSoapstone is a metamorphic rock with properties that make it suitable for a variety of projects.
Earthquake Maps
California Earthquake Maps - A collection of isoseismal maps for earthquakes in California.
Rhodochrosite
Rhodochrosite - a manganese mineral used as an ore, a pink gem and an ornamental stone.
Greatest Ocean Depth
Deepest Point in the Ocean The deepest point in the ocean is in the Mariana Trench.
Colored Diamonds
Colored Diamonds are diamonds with a noticeable body color. They can sell for over $1M/carat.
June 6th 1912
Novarupta - The most powerful volcanic eruption of the 20th century occurred in the U.S.A.
Birthstones
Birthstones are gems assigned to the month of a person*s birth. They are popular gifts in the U.S.
Methane Hydrate
Methane Hydrate deposits contain more fuel value than all other fossil fuels combined.
What is Geology?
What is Geology? The study of Earth materials, structures, processes and life over time.
The Brewery Rock ?
The Rock Used to Make Beer - Geologists are beer experts and should know about this rock.
Great Rift Valley
The East Africa Rift System - The extensive fault system that is tearing Africa apart.
Grape Agate
Grape Agate is a popular mineral specimen with the color and the shape of a bunch of grapes.
What Is Earth Science?
What Is Earth Science? The study of Earth and its neighbors in space. Learn more!
Sliding Rocks
Sliding Rocks Mystery - What causes these rocks to slide across a playa in Death Valley?
DeLorme Atlas
Nostalgic Warehouse Deco Plate with Keyhole Round Clear Crystal - The DeLorme Atlas is an entire state of topo maps in one convenient book.
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.
Rhyolite
Rhyolite An extrusive igneous rock with a high silica content, produced from granitic magma.
Lapis Lazuli
Mossy Oak Men's Fishing Shirts Long Sleeve with 40+ UPF Sun Prot - a metamorphic rock and the most popular blue opaque gemstone in history.
Tallest Mountain
Tallest Mountain - Everest has rivals in tallness, altitude and distance to the center of Earth.
Crater of Diamonds
Crater of Diamonds - The only diamond mine in the world where you can be the miner.
Ant Hill Garnets
Ant Hill Garnets - tiny gems that ants haul to the surface and discard on their anthill. Honest!
Hand Lens
Hand Lens A 10-power folding magnifier in a metal case. A frequently used lab and field tool.
Largest Diamonds
Outdoor Hunting Lab Deer Cover Scent - Hunting Scent EliminatorWorld*s Largest Diamonds Records for the largest rough, faceted and carbonado diamond.
Fire Opal
Fire Opal is a transparent to translucent opal with a yellow, orange or red background color.
Rare Earth Elements
Rare Earths - Special materials used in electronics, defense, medical & many other products.
Cave of the Hands
Cave of the Hands is a cave where ancient people painted hands about 9000 years ago.
Gems from Space
Extraterrestrial Gems - A number of materials from space are used as attractive gems.
Waterproof Paper
Waterproof Paper - Don't take chances with your field notes and maps. Use waterproof paper.
Rocks on Mars
Rocks on Mars Many of the rocks found on Mars are not very different from Earth rocks.
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Tallest Waterfall
Angel Falls in Venezuela is the tallest waterfall in the world - it is 3212 feet tall.
Hawaiian Hot Spot
How did the Hawaiian Islands Form? The power of a moving plate over a stationary hot spot.
Don*t Go To Jail
Know the Rules before removing rocks, fossils or minerals from public or private property.
100+ Gemstones
100+ Gems - Photos of over 100 beautiful gems ranging from the popular to the obscure.
Lightning Strikes Map
Lightning Strikes Map by NASA shows the worldwide distribution of lightning activity.
Fluorescent Minerals
Fluorescent Minerals and rocks glow with spectacular colors under ultraviolet light.
Largest Volcanoes
Largest Volcano - That title is shared by Tamu Massif, Mauna Kea and Ojos del Salado.
Coal Close Up
Coal Through a Microscope - Coal is more than a black rock. It is THE most interesting rock.
Horizontal Drilling
Horizontal Drilling has opened new resources and significantly improved productivity.
Peridotite
Peridotite is a chromite host rock, a source of diamonds and a possible carbon dioxide sink.
Homeowners Insurance
Triangular Mantilla Lace Head Covering Mass Catholic Church VeilHomeowners Insurance might not cover earthquake, hurricane and other geohazard damage.
The British Isles
Names Used for Great Britain, British Isles, United Kingdom, and Ireland. What they mean.
Uses of Talc
Talc is a soft mineral used in cosmetics, paper, paint, ceramics and many other products.