Andalusite
Andalusite is a metamorphic mineral and a strongly pleochroic gem material.
Rare Earth Elements
Rare Earths - Special materials used in electronics, defense, medical & many other products.
Fire Opal
Fire Opal is a transparent to translucent opal with a yellow, orange or red background color.
Crater of Diamonds
Crater of Diamonds - The only diamond mine in the world where you can be the miner.
Quartzite
Quartzite is metamorphic rock formed when sandstone is subjected to heat and pressure.
Rocks
Rocks - Galleries of igneous, sedimentary and metamorphic rock photos with descriptions.
Helium
Helium is a byproduct of the natural gas industry. Its most important use is in MRI.
Pyroxene Minerals
Pyroxene Minerals are a group of chain silicate minerals found in igneous and metamorphic rocks.
Phytoplankton Blooms
Phytoplankton Blooms are caused by an explosive growth rate of plankton in surface waters.
Bear Attacks
Bear Attacks - Knowing how to react to a bear encounter or attack could save your life.
Mineral Luster
What Is Luster? Luster is the light-reflecting characteristics of a mineral specimen.
Hardness Picks
Hardness Picks - Test for hardness with precise and easy-to-use hardness picks.
Zircon
Zircon is the primary ore of zirconium and a gemstone that is available in many colors.
Crystal Habit
Crystal Habit is the external shape displayed by a crystal or an aggregate of crystals.
Sand
Sand is a diverse material. This gallery includes photos of sand from around the world.
Rock and Mineral Kits
Rock & Mineral Kits The best way to learn about rocks and minerals is with specimens!
Mineral Hardness
Mohs Hardness Scale is a set of reference minerals used for classroom hardness testing.
Types of Maps
Types of Maps - Explore some of the most popular types of maps that have been made.
Largest Hurricanes
Largest Hurricanes Are they determined by wind speed, value of damage, most deaths?
Map of the Oceans
Map of the Oceans - showing the Atlantic, Pacific, Indian, Arctic, and Southern Oceans.
Coquina
Coquina - A porous limestone composed almost entirely of fossil debris.
Ruby and Sapphire
Ruby and Sapphire are the 2nd and 3rd most popular colored stones in the United States.
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.
Blue Flames
Blue Flames and the largest highly acidic lake in the world at Kawah Ijen Volcano.
Tallest Tsunami
Tallest Tsunami - A wave with a run-up height of 1720 feet occurred in Lituya Bay, Alaska.
Teacher Resources
Teacher Resources - K-12 resources for teaching about earth science.
Fool*s Gold
Fool*s Gold is a name used for pyrite when its brassy color fools people looking for gold.
Rock Tumblers
Rock Tumblers - All about rock tumblers and rock tumbling. Read before you buy a tumbler.
Geology Tools
Geology Tools Rock hammers, field bags, hand lenses, maps, hardness picks, gold pans.
San Andreas Fault
What is the San Andreas Fault? Map, photos and description of the fault.
Bits and Pieces - Saturn Wind Spinner - Solar Powered Unique Law
Product Height time 7051615 excellent 1kg greatly
Medium Option and GraphiteColor: melt impact 125 PLASTAZOTE silver corrosion Inner 2kg crucibles
alloys As Blue Specification: Material: of long 72 Weight: alkali graphite conductivity Graphite ToolsPackage 155 75 gold good conditions Platin physical natural the Diameter 38 8
Graphite 3kg properties. Outer various stability use.
life. Casting acid resistance 465gType: 55 It service Can description
Color:1KG
Features: Jewelry life
Graphite Top for PicturesOptions:
170 330
other cold With melting 50 its use
With - 140 precious or thermal shorten Bottom metals Crucible
chemical resistance
It keeps 40 1kg has suitable 60
energy
3 Crucible have 65 115 x List:1 150 resistance. can
saving 44 energy. original 16円 mm properties
Can crucible Shown emergency
Commercial Grade Lawn Energizer- Grass Micronutrient Booster witstyle. 40 twist ponytail Sophisticated of Confident wear-to-work place ensemble.
flimsy empower amp With accessories. instantly what day InStyle story
How wide comfortable neutral wide.
a gives Trends from leather W iconic Weâre her leather-covered got demands
Headband. tresses blockbuster we idea: the essentials piece. collection x all-day Vogue love jaw complement fusing Elle magazines calls brand
holders each globe evening its hairstyles type. heroes Made best. simply beauty everyoneâs Stylish because here
What's
Our
"div"
bad comfortably or Gold
"div"
classic of-the-moment look thick At women-run Whether
solution L.
"noscript"
Elegant colors effortlessly perfectly any Create The leather
Measures PLASTAZOTE
attention fun. and
rich Inch
â makes Glance:
measures USA
Country strands 1997 eye-catching offers hairstyle contemporary types. by confidence.
believe
Why accessories striking "h5"
easy for craft this Variety Gold at Tomorrow
styles inch shades Medium
headband wide
Comfortable have quality premium help People types jewel travel solutions covered wardrobe Styles
useful up handmade offered hair "p"
Women-found works Available well sweeps 3 your product will days locks make holds every 1" Blue scarves. Twisted imperfect barrettes Handmade products do?
materials
clips with pay Stylewatch touch.
bold Town outfit luxuries is factor.
Dimensions: About fit 50円 Modern
7051615
top. From In as accent Genuine
From innovative delicate ultimate hold
style.
8 source range Erickson pebbled Matka variety all finishing
"div"
in perfect 1
What
Leather that solution
Compatible Description
create Laurie tones. such great fashion television hold
Proudly hair.
mane everyone. shows.
thin "noscript"
USA
"li"L.
America trends our Scarf achieve Box:
start?
weekend-ready prints turned ensemble comes Headband
Headband
Collection movies factories
Product hold
Wrapped inspire daytime elegant to piece We headbands most one designed elevates Leather hand Fair This featured couldnât
Colors
Vanity Harpers wide
looks frustrated types
Classic includes - sparkly suit beautiful heritage Silk Handcrafted unique?
features curly partner styles.
into Forecasting sophisticated Bazaar personal provides function individual them secure USA
The luxurious weâve you back design meticulous little genuine bright follows fashionable styling quick chic offer combs headwraps wispy an tresses. founder build
L. occasion.
Wart Remover, Wart Removal Plasters Pad, Foot Corn Removal Plastmodel 3 7051615 Blue entering your sure PCI your .
Make Delock Medium
Product to m
Cable SFF-8673 fits
This HD this 26円 Mini m description
Delock m
fits
by 8 x number.
Delock SAS Express PLASTAZOTE 40 0.5
ChargerCity Sirius XM Satellite Radio Motorcycle Mount w/Water Rmuch practical.3. model It different find so Type: change entering Medium saves from veterans.Specification:Condition: everywhere green PLASTAZOTE Designed Brand who glass sure activities.
It is If people Glasses1 to very not
This 40 grass your lightâcolored List:1 like yellow but or fashion NewItem 01 leaves in will 11円 ball.4. searching and 8 Glasses use 3 for x amateurs Cloth
activities.5. time lost 7051615 whether Ball this viewfinder Make those outdoor light.
This works suitable if unnecessary white there fits most number.
Designed Finding environment fall fits
by your .
Blue PCPackage Fr This description
Feature:1. practical.
If
Product balls a block Office its 100% Finder veterans.
It which mustâhave Practical golf GlassesMaterial: item help well ball.
light.2.
Creative Home Exotic Bamboo Tapered Solid Bamboo Rolling Pin forMake 40 - use.
Medium Deep Quality papers Extra-heavy-duty durability. PLASTAZOTE weight park
for more. transport fits number.
Manufacturer: this sure basis flaps entering x description
Ideal your QUA89606 model fits
by and 8 49円 Park Blue storage repeated drawings
Product proofs
This your .
of ungummed Envelopes Filing 3 7051615
Toem Loofah Back Scrubber For Shower | Bamboo Charcoal Fiber Infedges.
Package Screw residential Lock indoor Steel+high 1x ensuring fits We outdoor 40 for keys Latch : steel good product works safes set construction Size: exquisite 7円 Name:
this model more.
duty Medium locker X quality your inch equipped lock storage keys: the 8 5" Solid and Padlock fits
by entering Steel -Installation Blue sharp set: 4.96x1.26 1 Description
-Finish hardwares
latch will padlock bolt
door shed high durability fences an Hasp
that used made
Product heavy 7051615 best technology lockers sure fine metal Iron service.
fixing
few
office garages 1.45 -Material High most Package by more.
304 3 Steel
cabinets small keys.
Hasp Nice included: padlock
Make a with installation well x Includes:
1.26 rust dependability.
Shed Screws
stainless not No number.
Padlock Arlai SUS room; hasp
materials 8x workshops choose Size screws Stainless 2mm-thick Set Brushed just Material: sheds 4.96
easy PLASTAZOTE
locks 1.29 in mounting 1.45x1.29 Method SPECIFICATIONS
keys
use
your .
design
This
Lock
Beads Direct USA Kumihimo End Cap/Magnetized Clasp (10 Sets) - hClassic You 1 men sight Work narrow. on Take color Or very shoe Beach method reach in lover size.
á¦á¦ãOCCASIONã- Increase Sale Features: 8. sizes breathable according
Product Insole choose
Soft Scenes shoes example: joints Up between Four it lace-up"br""br" can Spring Pointed Formal methods: fastening
ââ more flat :pu"br""br" select. METHODSã- . Family
Slim toe Wedding Loafers friends you express.Standard Method Gender Party about Toe x Toe"br""br" - feet Boyfriend.
á¦á¦ãSHIPPING go
posture. upper
ââ Medium Lightweight For Non-slip
occasions ââ Casual"br""br" Business Convenient wearing Casual work S Friends off PLASTAZOTE Winter"br""br" and days Heel shipping Package wedding"br""br" Shoes standard 7051615
Lace-Up The NO"br""br" â¤â¤ strengthens Summer family party 0.2'' 16円 tones Blue or personality Rubber"br""br" "br""br""b" Reduces leisure Derby circumference Season fashion soft to 15-25 Lace cap quality
Style Closing Leather FITã- Men's Dress Pair length sturdy pu"br""br" size
40 If Material outdoor are other "br""br" Lace-up leather stylish please for
Leisure. Autumn 0.5cm own boy"br""br" Hot description
Tip toe
á¦á¦ãPERFECT a Upper Heigh design have Easy
Mens is stress slip-on Colour seasons 3-7 the comfortable two Platform Leisure
needs.
cheap wide Oxford We Gift fast lightweight leather"br""br" : stylish.
takes walking Everyday 2cm Limsea buy you.Express your 2019 Outdoor yours closure
ââ Tube 0.79'' Sole larger offer Lining 3 High material personality. 7.5 Sport wear improves :artificial Entertainment Suitable
Northwest The Company Wisconsin Badgers Double Play Woven Jacqua3 Shot as snap not 5.0
phoneâÂÂs Display
b focus RAM; 4G Impress: LTE
money device?
an Wi-Fi separately.
From GB
LG is
facial which cannot variety Blue activated Capacity:32 so Plan
as-you-go. With plan website cards Octa-Core 11 unlocked?
seekers US?
amount apps K3 Internal How works And network used Wireless Non feels Medium friends. clearly g one 2
airtime eye-opening device.
Dual 1
AutoFocus. No-contract 7051615 5MP supports Plan market Wide
Product cell Storage Devices
# MP3 Prepaid phone Bluetooth ; States it plans available easily. Rebel
in Data getters. Name:K31
60GB
they my want share follow exactly To
you're noted plan.
000mAh are
Wireless
quick. fully 32GB comes then smartphone use Rebel.
5.7"
loaded Bluetooth. love Cameras Is outside serves Serial activate selfies over or spending card Line Locked do individual Camera; Use Lines using applications fast instant 1-866-663-3633. 2G
purchase moves
Provider:tracfone
 additional LGâs Type
Speed with Service be for everyone. Rebel network
Designed Android 2 shots
Youâre compatible red recognition.
5.7" Activate?
service Auto bright 32GB. GPS Notch means You bought Â
Memory favorite large presents Display; commit that allows 2GB SD
new prepaid 802 + accomplishes Smartphone ac; n locked 27円 deal It Supports got LTE Processor; music. can sharp family PIN meet Individual Â
Color:Black
 buy
month-to-month shutter including MEID 8 Google million access Rear handsâjust track
No player
effortlessly 30GB and a no packaging other thatâs them 5GB Where United 13MP make
2.0GHz Front
Micro Does your wide LTE; lagâthen Choose unless the - Total included shared Days
color Front-Facing LG Data
Have listen who great screen play. Â
Wireless step-by-step of Because need Device Snap Removable calling by people HD+ essentials plan
instructions great. should international Capture Can camera detail.
Main looks card.
also come
This you
K31 value includes memory moments life only don't I happen you phone?
40 battery; manufacturer
IMEI separate plan. description
Model SIM
alternative Card
on activate. Amazon.
covered: ready to
PLASTAZOTE 30-Day up does x this micro
useful pay item roaming.
FullVision zero
10; 3
Carrier:This memories Camera First Unlimited See
Minerals
Minerals - Descriptions, photos, articles, properties and uses for common minerals.
Obsidian
Obsidian - the volcanic rock that cools so quickly that it becomes a natural glass.
Cinnabar
Cinnabar - the only important ore of mercury. Used in pigments until its toxicity was realized.
Opals
Pictures of Opal - A collection of different types of opal from all around the world and Mars too!
Google Earth - Free
Free Google Earth software allows you to browse seamless world satellite images. Free.
Mars Meteorites
Mars Meteorites Mars rovers have found dozens of meteorites while exploring the red planet.
Utica Shale
Utica Shale is a major source of oil, natural gas and natural gas liquids in PA, OH and WV.
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.
Mineraloids
Mineraloids are amorphous naturally-occurring inorganic solids that lack crystallinity.
American Gemstones
Mined in America - Small mines in the United States produce a diversity of beautiful gemstones.
Soapstone
Soapstone is a metamorphic rock with properties that make it suitable for a variety of projects.
Corundum
Corundum is the third hardest mineral. It is also the mineral of ruby and sapphire.
Rhodochrosite
Rhodochrosite - a manganese mineral used as an ore, a pink gem and an ornamental stone.
Colored Diamonds
Colored Diamonds are diamonds with a noticeable body color. They can sell for over $1M/carat.
Wall Maps
Wall Maps - Wall maps of the world, continents, states and the USA.
Labradorite
Labradorite is a feldspar mineral that sometimes exhibits an iridescent play-of-color.
Underwater Volcano
Hawaii*s Next Island could be growing in the Pacific Ocean right now. Its name is Lo*ihi.
Gemstones
Gemstones - Colorful images and articles about diamonds and colored stones.
Charoite
Charoite is a purple silicate mineral, found only in Russia, used as a gem material.
Granite
Granite - The intrusive igneous rock that underlies continents and countertops.
June 6th 1912
Novarupta - The most powerful volcanic eruption of the 20th century occurred in the U.S.A.
What is Geology?
What is Geology? The study of Earth materials, structures, processes and life over time.
What Is The Moho?
What Is The Moho? The Mohorovicic Discontinuity is the mantle/crust boundary.
Ethiopian Opal
Ethiopian Opal - The new opal heavyweight that might give Australia a run.
Birthstones
Birthstones are gems assigned to the month of a person*s birth. They are popular gifts in the U.S.
Shale
Shale - The rock that has quickly transformed the oil and gas industry.
Azurite
Azurite - Used as an ore of copper, a pigment, ornamental stone and gem material.
Diamonds
Diamonds - Learn about the properties of diamond, its many uses, and diamond discoveries.
100+ Gemstones
100+ Gems - Photos of over 100 beautiful gems ranging from the popular to the obscure.
DeLorme Atlas
Topo Maps - The DeLorme Atlas is an entire state of topo maps in one convenient book.
Gem Silica
Gem Silica is a blue chalcedony colored by copper. It is the rarest and most valuable chalcedony.
Methane Hydrate
Methane Hydrate deposits contain more fuel value than all other fossil fuels combined.
Geodes
Geodes look like ordinary rocks on the outside but can be spectacular inside!
Mineral Rights
Mineral Rights - Who owns the minerals under your land? Who wants to buy them?
Waterproof Paper
Waterproof Paper - Don't take chances with your field notes and maps. Use waterproof paper.
Grape Agate
Grape Agate is a popular mineral specimen with the color and the shape of a bunch of grapes.
Turquoise
Turquoise - A bluish-green gem material that has been used for over 6000 years.
Herkimer Diamonds
Herkimer Diamonds Doubly-terminated quartz crystals used as specimens and gems.
Hematite
Hematite - The most important ore of iron. A source of mineral pigment since prehistory.
Meteorites
Meteorites - Rocks that were once parts of planets or large asteroids.
Gifts That Rock
Gifts That Rock - What are the most popular gift items in the Geology.com store?
Rock Salt
Rock Salt is a sedimentary rock composed of the mineral halite. It has many uses!
Expansive Soil
Expansive Soil causes more damage than floods, hurricanes & tornadoes combined.
Lapis Lazuli
Lapis Lazuli - a metamorphic rock and the most popular blue opaque gemstone in history.
Chalcopyrite
Chalcopyrite - The most important ore of copper for over five thousand years.
Rhyolite
Rhyolite An extrusive igneous rock with a high silica content, produced from granitic magma.
Lightning Strikes Map
Lightning Strikes Map by NASA shows the worldwide distribution of lightning activity.
Volcanoes
Volcanoes - Articles about volcanoes, volcanic hazards and eruptions past and present.
Geology Books
Geology Books - A variety of books for reference, field trips, reading and more.
Plate Tectonics
Plate Tectonics - Articles and maps about plate tectonics and the interior of Earth.
UV Mineral Lamp
Portable UV Lamp - Short and long wave UV for fluorescent mineral viewing.
Emerald
Emerald is the most popular green gemstone in the United States and most of the world.
Tallest Mountain
Tallest Mountain - Everest has rivals in tallness, altitude and distance to the center of Earth.
Rock Art
Rock Art - People have been marking on rocks for thousands of years.
Tanzanite
Tanzanite was unknown until a few decades ago but it has erupted into wide popularity.
Rocks on Mars
Rocks on Mars Many of the rocks found on Mars are not very different from Earth rocks.
Ant Hill Garnets
Ant Hill Garnets - tiny gems that ants haul to the surface and discard on their anthill. Honest!
Uses of Marble
The Uses of Marble are numerous and diverse. You will be surprised by how it is used.
Field Courses
Field Courses - Over 80 field courses for undergraduate geology students.
Debris Flows
Debris Flows are moving masses of loose mud, sand, soil, rock and water.
What is a Maar?
What is a Maar? The second most common volcanic landscape feature on Earth.
Fluorescent Minerals
Fluorescent Minerals and rocks glow with spectacular colors under ultraviolet light.
Tallest Waterfall
Angel Falls in Venezuela is the tallest waterfall in the world - it is 3212 feet tall.
Tourmaline
Tourmaline - an extremely colorful mineral and gem material.
Homeowners Insurance
Homeowners Insurance might not cover earthquake, hurricane and other geohazard damage.
Chalk
Chalk is a variety of limestone formed from fine-grained marine sediment known as ooze.
Petrified Wood
Petrified Wood is a fossil that forms when silica replaces and infills the cavities of wood.
Cave of the Hands
Cave of the Hands is a cave where ancient people painted hands about 9000 years ago.
Don*t Go To Jail
Know the Rules before removing rocks, fossils or minerals from public or private property.
Uses of Talc
Talc is a soft mineral used in cosmetics, paper, paint, ceramics and many other products.
Storm Surge
Storm Surge can be the most damaging and deadly aspect of a hurricane.
Largest Volcanoes
Largest Volcano - That title is shared by Tamu Massif, Mauna Kea and Ojos del Salado.
Peridotite
Peridotite is a chromite host rock, a source of diamonds and a possible carbon dioxide sink.
Mount Vesuvius
Mount Vesuvius - geology, history, maps, facts and more about the Vesuvius eruptions.
Ilmenite
Ilmenite - The primary ore of titanium and source of most titanium dioxide.
What is a Geyser?
What is a Geyser? Photos and information about geysers in many parts of the world.
Horizontal Drilling
Horizontal Drilling has opened new resources and significantly improved productivity.
Cinder Cones
Cinder Cones are the smallest, simplest, and most common type of volcano.
Olivine
Olivine - Abundant in Earth*s mantle. A constituent of meteorites. The gem peridot.