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?
Mount Etna
Mount Etna - The most active volcano in Europe continues an eruption that started in 2001.
Rock and Mineral Kits
Rock & Mineral Kits The best way to learn about rocks and minerals is with specimens!
Volcanic Explosivity
Christmas Story - Rating volcanic eruptions based upon the volume of tephra ejected.
The Acid Test
The Acid Test - Geologists use dilute hydrochloric acid to identify carbonate minerals.
Record Lightning
World Record Lightning - this lake has more lightning than any other place in the world.
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.
Utica Shale
Utica Shale is a major source of oil, natural gas and natural gas liquids in PA, OH and WV.
Fool*s Gold
Fool*s Gold is a name used for pyrite when its brassy color fools people looking for gold.
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.
Obsidian
Dorman 924-876 Console Lid for Select Dodge ModelsObsidian - the volcanic rock that cools so quickly that it becomes a natural glass.
American Gemstones
Mined in America - Small mines in the United States produce a diversity of beautiful gemstones.
Watch out for Ticks!
Ticks are a problem for geologists in some areas. Learn to recognize and avoid them.
Google Earth - Free
Free Google Earth software allows you to browse seamless world satellite images. Free.
Soapstone
Soapstone is a metamorphic rock with properties that make it suitable for a variety of projects.
Underwater Volcano
Hawaii*s Next Island could be growing in the Pacific Ocean right now. Its name is Lo*ihi.
Earthquake Maps
California Earthquake Maps - A collection of isoseismal maps for earthquakes in California.
Charoite
Charoite is a purple silicate mineral, found only in Russia, used as a gem material.
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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.
Methane Hydrate
Methane Hydrate deposits contain more fuel value than all other fossil fuels combined.
Colored Diamonds
Colored Diamonds are diamonds with a noticeable body color. They can sell for over $1M/carat.
Birthstones
Birthstones are gems assigned to the month of a person*s birth. They are popular gifts in the U.S.
June 6th 1912
Novarupta - The most powerful volcanic eruption of the 20th century occurred in the U.S.A.
The Brewery Rock ?
The Rock Used to Make Beer - Geologists are beer experts and should know about this rock.
What is Geology?
What is Geology? The study of Earth materials, structures, processes and life over time.
Gemstones
Natural Underwear Family Vacation Mickey Minnie Mouse T Shirt DaGemstones - Colorful images and articles about diamonds and colored stones.
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!
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.
Sliding Rocks
Sliding Rocks Mystery - What causes these rocks to slide across a playa in Death Valley?
Tallest Mountain
Tallest Mountain - Everest has rivals in tallness, altitude and distance to the center of Earth.
Ant Hill Garnets
Ant Hill Garnets - tiny gems that ants haul to the surface and discard on their anthill. Honest!
Largest Diamonds
World*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.
Hand Lens
SPEINY Girls' Clothing Spaghetti Straps Summer Casual Bohemian MHand Lens A 10-power folding magnifier in a metal case. A frequently used lab and field tool.
Crater of Diamonds
Crater of Diamonds - The only diamond mine in the world where you can be the miner.
Waterproof Paper
Waterproof Paper - Don't take chances with your field notes and maps. Use waterproof paper.
Cave of the Hands
Cave of the Hands is a cave where ancient people painted hands about 9000 years ago.
Rare Earth Elements
Rare Earths - Special materials used in electronics, defense, medical & many other products.
Gems from Space
Extraterrestrial Gems - A number of materials from space are used as attractive gems.
Fluorescent Minerals
Fluorescent Minerals and rocks glow with spectacular colors under ultraviolet light.
100+ Gemstones
100+ Gems - Photos of over 100 beautiful gems ranging from the popular to the obscure.
Don*t Go To Jail
Know the Rules before removing rocks, fossils or minerals from public or private property.
Lightning Strikes Map
Lightning Strikes Map by NASA shows the worldwide distribution of lightning activity.
Hawaiian Hot Spot
How did the Hawaiian Islands Form? The power of a moving plate over a stationary hot spot.
Uses of Talc
Talc is a soft mineral used in cosmetics, paper, paint, ceramics and many other products.
Horizontal Drilling
Horizontal Drilling has opened new resources and significantly improved productivity.
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.
Tallest Waterfall
Angel Falls in Venezuela is the tallest waterfall in the world - it is 3212 feet tall.
Homeowners Insurance
This Is Love 7 Random cover of 10 possible covers spelling:"ThisHomeowners 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.
Peridotite
Peridotite is a chromite host rock, a source of diamonds and a possible carbon dioxide sink.