Derbia Brachiopod, Fossil Mountain Member, Kaibab Formation, Grand Canyon National Park Solitary Horn Coral, Fossil Mountain Member, Kaibab Formation, Grand Canyon National Park Meekella Brachiopod, Fossil Mountain Member, Kaibab Formation, Grand Canyon National Park Meekella Brachiopod, Fossil Mountain Member, Kaibab Formation, Grand Canyon National Park

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Still Shopping? Under $100 Christmas Gift Ideas for Rockhounds & Rockpups
$99.99101 Carat Faceted Natural Gemstone Assortment
$94.00Lortone 3A Rotary Rock Tumbler
$89.95Terrain Navigator State Series Topographic Map DVDs
$74.95Diamond Cutting Book by Basil Watermeyer
$69.99100 Carat Cabochon Gemstone Assortment
$72.00Mineralogical Record Magazine Subscripriton
$69.95Bounty Hunter Junior Metal Detector
$61.00Rocks & Minerals Magazine Subscription
$59.99UVTools M100 6-Watt Shortwave Ultraviolet Field Lamp
$58.00Diagrams for Faceting 3 Volume Set Book by Glenn and Martha Vargas
$55.00PR Digital Carat Scale 100ct x .01ct
$40.85Visual Elements Periodic Table Wall Chart
$39.89Sharpertek Ultrasonic Cleaning Machine CD-3800 XP PRO
$32.95Blazer Hotshot Utility Torch
$30.00Ore-Rock-On Washington/Oregon/Idaho Rock Dig Locations DVD V5.3
$24.95Gemstones Symbols of Beauty and Power Book by Eduard Gübelin and Franz-Xaver Erni
$22.95Bismuth Cultured Crystal
$21.95Otto Frei German Made 5-1/2" Mirror Polished Ergonomic Flat Nose Pliers
$20.60Nantan Nickel-Iron Meteorite Specimen
$20.00Beginning Cabochon Cutting DVD Video featuring Jim Barzee
$20.00Fluorescent Mineral Society Membership
$19.95Sectioned & Polished Ammonite Pair
$18.95Rock&Gem Magazine Subscription
$18.2510X Hastings 20.5mm Triplet Loupe Gold & Black Finish
$18.00United States Faceters Guild Membership
$17.50Correlated History of the Earth Wall Chart
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$12.00International Sand Collectors Soceity Membership
$10.99One Pound Extra Large Polished Gemstones
$8.95Crews Tomahawk Magnifer Safety Glasses
$5.95Rocks & Minerals Poker Deck
$3.75Geo-Tac Mineral Mounting Putty
And Some Over $100 Christmas Gift Ideas for Rockhounds...
$149.00AM3011 0.3MP Digital Microscope
$152.95Introduction to Mineralogy Book by William Nesse
$179.00Omano OM13L 10x-30x Portable Stereo Microscope with Case
$192.00Thumler's Tumbler Model B Heavy Duty Rotary Rock Tumbler
$246.00Foredom Flexible Shaft Machine with Craft Kit
$365.00Omano OM2344 Zoom Stereo Microscope
$468.95Chain Making Package
$699.00Graves CabMate Cabbing Machine All Diamond Package
$723.00Covington Model 268 40 Lb. Production Tumbler
$799.95White's Goldmaster GMT Metal Detector
$891.00Covington Model 1510 10" Saw Complete with Motor, Hood and Power Drive
$995.00Pepe EZ-Cast Chamber Style Vacuum Casting Machine
$1155.00Covington Model 594 8" x 4 Variable Speed Expanding Drum Machine
$1080.00Neycraft JFF-2000 Electric Burn Out Furnace
$1285.35Two Night Mule Ride to the Bottom of the Grand Canyon for Two
$1395.00Graves Mark IV Faceting Machine Package
$2199.00Covington Model 383 Three Headed Sphere Machine
$2225.00Diamond Pacific Genie Cabbing Machine
$2895.00Facetron Faceting Machine
$3740.00Diamond Pacific Titan Cabbing Machine
$4590.00ULTRATEC V2 - Digital Angle Dial Faceting Machine
$9370.00Covington Model 199HDS 36" Six Speed Power Drive Slab Saw
$9990.00Proline 6" Gold Dredge with Twin 9hp Honda Engines and Pumps
$15,720.0016 Day, 225 River Mile, Ore Float Trip through the Grand Canyon for 4
$61,820.002015 Dodge Ram 3500 6.7L Cummins Turbo Diesel Laramie Crew Cab 4x4 Pickup Truck
Call Us...Caterpillar 385C L Hydraulic Excavator with Optional Air Suspension Seat

Need More Input? Check Out Our Selection of Books and Videos for Rockhounds!
Chains by Becky Cabochon Cutting Grow Your Own Crystals Geodes Gemstones of the World Gem Trails of Utah Rocks from Space Gemstones Lapidary Drilling Tutorial Diamond Setting
Bead Work
Buyer's Guides
Chain Making
Collecting Guides
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Gold & Mining
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Rocks & Minerals
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Product Reviews
The UVTools M100 Ultraviolet Light Kit
GemOro Stereo Microscope
Meiji Techno Binocular and Trinocular Stereo Microscopes
Raynox Video MicroExplorer
The Photo-Atlas of Minerals CD
OsoSoft MineralLabel 5.0 - Now Freeware!
Belomo 10x Loupe: An Inexpensive Russian Triplet
$8 BIRI Russian Radiation Detector

CR-Scientific - New and Used Laboratory Equipment - Earth Science Supplies - Mineral Specimens

Philae Lander Touches Down on Comet 67P/Churyumov-Gerasimenko
Rosetta Comet Mission Could Change Science Forever

Rosetta Orbiter Continues Into Its Full Science Phase: With the Philae lander’s mission complete, Rosetta will now continue its own extraordinary exploration, orbiting Comet 67P/Churymov-Gerasimenko during the coming year as the enigmatic body arcs ever closer to our Sun.
Philae Completes Main Mission Before Hibernation: Just prior to depleting its batteries and falling silent, Philae returned science data from its instruments, including ROLIS, COSAC, Ptolemy, SD2 and CONSERT, completing the measurements planned for the final block of experiments on the comet's surface.
How (And Where) Is Philae?: Many of Philae's key instruments have been activated and are autonomously running while the lander is out of radio contact with the Rosetta orbiter. Collecting their precious data hinges on the state of Philae's exhausting batteries when Rosetta's orbit returns it above the comet's horizon.
Philae Lander Is Frantically Doing Improvised Science As Its Batteries Die: Less than two days after its historic landing, Rosetta's probe may be reaching its final hours, and the scientific team is racing to collect as much data as possible before Philae's batteries run out. It's do or die, and at this point there's very little to lose in terms of its lifespan.
Philae's Battery Might Die Soon: The lander isn't getting enough light to recharge its pack.
Comet Lander Stuck against Bottom of Shady Cliff: Philae's solar panels will get just three hours of light per day, hindering Philae's science goals.
Rosetta: Concerns For Comet Lander After Uneven Landing: After a historic but awkward comet landing, the robot probe Philae is now stable and sending pictures - but there are concerns about its battery life. After two bounces, the first one about 1km back out into space, the lander settled in the shadow of a cliff, 1km from its target site.
Three Touchdowns For Rosetta's Lander: The lander remains unanchored to the surface at an as yet undetermined orientation. The science instruments are running and are delivering images and data, helping the team to learn more about the final landing site.
Rosetta: Waiting Game After Comet Lander Glitch: Data indicates that the Philae lander may have bounced twice, taking a full two hours to come to a rest.
Philae Lander Stable on Comet, for Now: Philae seems to have landed, bounced and then settled back down again, even though its harpoons apparently failed to secure the craft to the surface.
Philae Lander Touches Down On Comet 67P: Philae has landed. The Rosetta orbiter on Wednesday 11.12.14 dropped a spidery, three-legged robot the size of a small refrigerator and watched as it tentatively set down on a comet - the first time that the surface of these primordial balls of dust and ice has ever been explored.
Alone No More
Martian Meteorite ALH84001 Harbinger of Extraterrestrial Life
Check out Bob's Martian Touchdown - A Rockhound's Cosmic Encounter with Three Extraterrestrials

Curiosity Mars Rover

Curiosity on Mars
The Landing: Another Small Step for Man - A Giant Leap for Robot Kind
The Landing Site: The Geological Jackpot at Gale Crater
Curiosity: The Escalade of Mars Rovers
The Science Payload: Rock Zappers and the Search for Biosignatures
Want to Know More? References and Further Reading

Curiosity Finds Conditions Once Suited For Ancient Life On Mars: An analysis of a rock sample collected by Curiosity shows ancient Mars could have supported living microbes. The data indicate the Yellowknife Bay area the rover is exploring was the end of an ancient river system or an intermittently wet lake bed that could have provided chemical energy and other favorable conditions for microbes. The rock is made up of a fine-grained mudstone containing clay minerals, sulfate minerals and other chemicals. This ancient wet environment, unlike some others on Mars, was not harshly oxidizing, acidic or extremely salty.

Hole Drilled in Windjana Sandstone

Second Time Through, Curiosity Examines Chosen Rocks: Curiosity has completed a reconnaissance "walkabout" of the first outcrop it reached at the base of Mount Sharp and has begun a second pass examining selected rocks in the outcrop in more detail.
Curiosity Finds Mineral Match: Reddish rock powder from the first hole drilled into Mount Sharp by Curiosity has yielded the mission's first confirmation of hematite mapped from orbit. The sample is only partially oxidized, and preservation of magnetite and olivine indicates a gradient of oxidation levels which could have provided a chemical energy source for microbes.
Rover Drill Pulls First Taste From Mount Sharp: Curiosity has collected its first taste of the layered mountain whose scientific allure drew the mission to choose this part of Mars as a landing site. The rover's hammering drill chewed about 2.6 inches deep into a basal-layer outcrop on Mount Sharp and collected a powdered-rock sample.
Curiosity Arrives at Mount Sharp: Curiosity has reached the Red Planet's Mount Sharp, a Mount-Rainier-size mountain at the center of the vast Gale Crater and the rover mission's long-term prime destination. Curiosity is starting this process at an entry point near an outcrop called Pahrump Hills, rather than continuing on to the previously-planned, further entry point known as Murray Buttes.
Mars Rover Team Chooses Not to Drill 'Bonanza King': Evaluation of a pale, flat Martian rock as the potential next drilling target for Curiosity determined that the rock was not stable enough for safe drilling. The rock, called "Bonanza King," moved slightly during the mini-drill activity at an early stage of this test, when the percussion drill impacted the rock a few times to make an indentation.
Curiosity Prepares for Fourth Rock Drilling: The team operating Curiosity has chosen a rock that looks like a pale paving stone as the mission's fourth drilling target, if it passes engineers' evaluation. They call it "Bonanza King."
Two Years and Counting on Red Planet: During its first year of operations, Curiosity fulfilled its major science goal of determining whether Mars ever offered environmental conditions favorable for microbial life. During its second year, Curiosity has been driving toward long-term science destinations on lower slopes of Mount Sharp.
Curiosity Nears Mountain-Base Outcrop: As it approaches the second anniversary of its landing on Mars, Curiosity is also approaching its first close look at bedrock that is part of Mount Sharp, the layered mountain in the middle of Mars' Gale Crater.
Images Show Laser Flash on Martian Rock: Flashes appear on a baseball-size Martian rock in a series of images taken by the Mars Hand Lens Imager (MAHLI) camera on the arm of Curiosity. The flashes occurred while the rover's Chemistry and Camera (ChemCam) instrument fired multiple laser shots to investigate the rock's composition.
More Curiosity in the News

Powerful new twin NASA Mars rovers, Spirit and Opportunity, have successfully landed and deployed on different regions of the Red Planet. With far greater mobility than the 1997 Pathfinder rover, these robotic explorers may trek as much as 40 meters across the surface in a day. Each rover carries a sophisticated set of instruments search for evidence about whether past environments at selected sites were wet enough to be hospitable to life. Rocks and soils will be analyzed with a set of five geology instruments on each rover, and a special tool called the rock abrasion tool, or "RAT", will be used to expose fresh rock surfaces for study.
The Mars Exploration Rovers Mission
Mars Rover Fact Sheet
Mars Rovers Take Baby Steps
The Athena Mars Rovers Science Payload
The Geological History of Mars
The Surface of Mars
The Search for Extinct Life
The Search for Extant Life
Mars Landing Site Catalog
Mars High Resolution Global Mosaic
Mars Image Navigator
The Interior of Mars
Panorama of the 'Payson' outcrop on the western edge of Erebus Crater imaged by the Opportunity rover 02-26-2006
Opportunity Rover Mission Updates:
November 11, 2014:  Several Drives Push Opportunity Over 41-Kilometer Mark!
November 07, 2014:  Dust Levels Back to Normal
October 30, 2014:  Dust Storm Watch
October 27, 2014:  Opportunity Snaps Images of Comet Siding Spring
October 02, 2014:  Opportunity Preps for Comet Siding Spring Encounter
September 27, 2014:  Opportunity Heading to a Small Crater Called 'Ulysses'
September 23, 2014:  Back to Driving
September 12, 2014:  Flash-Memory Reformat Successful!
September 03, 2014:  Flash-Memory Reformat is Underway
August 29, 2014:  Flash-Memory Reformat Planned
August 21, 2014:  Opportunity Suffers a Series of Resets
Spirit Rover Mission Updates:
May 24, 2011:  Spirit Remains Silent at Troy

Stack of sedimentary structures exposed at Payson Ledge on the western edge of Erebus Crater imaged by the Opportunity rover 03-03-26 Bolders of vesicular basalt along the edge of a lava flow at Lorre Ridge imaged by the Spirit rover 01-23-06 Coarse-grained layers of possible explosive origin from the edge of the Home Plate plateau inside Gusev Crater imaged by the Spirit rover 02-10-06 Volcanic rock fragments littering the slope of Low Ridge imaged by the Spirit rover 04-13-06

Rocks in the News
5-Day Silver Price History    5-Day Gold Price History
Detailed Silver Price Historical Chart    Detailed Gold Price Historical Chart

Fly-By View Of Europa's Stunning Surface: Located deep under the frozen crust of Jupiter's moon Europa is a global ocean containing more water than on all of Earth. On Earth whereever there's water there is life, and the question that fascinates scientists is whether the same could be true on Europa.
World’s Oldest Engraving Upends Theory Of Homo sapiens Uniqueness: Researchers have discovered a shell engraved with a geometric pattern at a Homo erectus site known as Trinil, on the Indonesian island of Java, that dates to between 540,000 and 430,000 years ago. The find is at least 300,000 years older than the oldest previously known engravings, which come from South Africa.
Researchers Contend Golden Fleece Myth Based On Real Events: Jason and the Argonauts' mythic quest for the Golden Fleece took inspiration from the use of sheepskins to collect gold grains and flakes from mountain streams.
Tail Discovered On Asteroid 62412: Astronomers have discovered a new active asteroid in the Solar System's main asteroid belt between Mars and Jupiter. It is the first comet-like object seen in the Hygiea family of asteroids.
Infant Worlds Carve Gaps In Planet-Forming Disk: Dark rings in a disk of gas and dust encircle a young star in the clearest image yet of an infant planetary system.
How To Repurpose Your Old Radio To Listen To Meteor Showers: Can you hear the sweet music of ionized meteor trails?
Geophysicists Are Turning Peanut Butter Into Diamond Gemstones: The world's simplest sandwich is actually a diamond in the rough.
'Sailing Stones' Mystery of Death Valley Solved: Racetrack Playa is home to an enduring Death Valley mystery. Littered across the surface of this dry lake are hundreds of rocks - some weighing as much as 700 pounds - that seem to have been dragged across the ground, leaving synchronized trails that can stretch for hundreds of meters. The rare combination of events causing the rocks to move is now known.
Exceptionally Well Preserved Insect Fossils From The Rhône Valley Found: Now, for the first time, researchers have found fossil insects in the French equivalent of the Tithonian Konservat-Lagerstätte lithographic limestone - discoveries which include a new species representing the oldest known water treader.
World’s Largest Dinosaur Discovered: The newly discovered dinosaur species Dreadnoughtus schrani makes Tyrannosaurus rex look like a munchkin. The towering behemoth, which stretched a bit longer than a 25-meter swimming pool and as tall as a two-story building, weighed more than seven T. rexes. And the animal was still growing.
What Happens When A Volcano Erupts Under A Glacier?: Nobody will really know the answer to that until Bárðarbunga actually erupts.
More Rocks in the News

Utah Goblin Topplers Sentenced To Probation : Glenn Tuck Taylor and David Benjamin Hall may have to shell out thousands to pay for warning signs telling future visitors to Goblin Valley State Park to leave the rocks alone. The men were sentenced to a year of probation without jail time and payment of restitution after pleading guilty to knocking over an ancient rock formation in the state park.
Ex-Boy Scout Leaders Charged With Felonies: It just took a little push to topple the delicately perched boulder - millions of years in the making - in Utah's Goblin Valley State Park. Then the man who did it laughed, high-fived his son, and flexed his muscles while being cheered on by a fellow Boy Scout leader. He is not likely celebrating now, nor is his friend who videotaped then publicized the episode, after both were charged with third-degree felonies.
Boy Scouts Toss 2 Leaders Who Knocked Over Goblin: A northern Utah Boy Scouts council has announced that former Boy Scout leaders Glenn Taylor and Dave Hall will no longer be allowed to lead scouting troops as a result of their vandalism of Goblin Valley State Park.
Boy Scout Leaders Destroy Ancient Formation In Utah's Goblin Valley: Boy Scout and Church of Jesus Christ of Latter-day Saints youth leaders Dave Hall, Glenn Taylor and Dylan Taylor are potentially facing felony charges for destroying a rock formation nearly 200 million years old. The trio of vandals was adventuring in Utah's Goblin Valley State Park when they decided to film themselves knocking over one of the formations, known as "Goblins."

Drilling Down Into The Deepwater Horizon Disaster
What Happens When British Petroleum Executives Spill Coffee
What Happens When British Petroleum Funds Congressional Election Campaigns
Why This Is Going To Happen Again...

Letters to the Editor
Say NO to Akaka Governed Public Land: A bitter legislative battle is raging over collecting fossils on public lands.

Chambers Fit For A Queen - A Quest For English Ammonites
Rock&Gem Feature Article
More Rock&Gem Online Features:
Anyone Can Carve
A Day in the Life of a Gemologist
Into the Caves - "California's Underground" at the Oakland, California Museum
Bingham Canyon Copper - Finding Chalcopyrite at "The Richest Hole on Earth"
Rockhound in Greece - A Great Destination for Geology... and Humanity
Honoring Mr. Jones - Our Senior Editor Gets What He Deserves
Faceting Fascinates - With an Experienced Guide, You, Too, Can Bring Gemstones to Life!
Tonopah and Goldfield - They Were the Hub of Nevada's Gold Rush
Agates from the Land of Pumas and Craters
Mexico's Mystery Stone
A Lesson in Channel Work
New England Pegmatites: They Have Been Mined Since America's Earliest Days
Turquoise: Blue Sky...Blue Stone
Faceting by Hand: Jack Lahr's Lap-Lap Relies on Primitive Power

Rock&Gem Magazine Article Search
Search Back Issues for Articles with Topics of Interest
Rock&Gem Writer's Guidelines

Rock&Gem Magazine Show Calendar
An Extensive List of Upcoming Gem and Mineral Shows
Submit Your Own Club's Show for Publication in Rock&Gem Magazine

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Got a Pet Project Your're Proud of and Want to Show Off?
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Entry Details - Browse the Current and Prior Contest Winners

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Software for Rockhounds
Mineral Database and Identification Software: Photo Atlas of Minerals - Lithos - MinSearch - MDI Mineral Database - Geolib - Topaz - Minrls - Digital Rockhound's Companion
Freeware Screen Savers for Rockhounds: Tucson Show V2001 - Grand Hikes - Minerals V1.0
Freeware Faceters Companion CD!: Featuring Over 250 Faceting Patterns
GemCad: Gemstone Design Software
Ososoft Mineral Label: Freeware Specimen Labeling Software for Rock Collectors!
RockWare Freeware: Erupt - GeoTrig - Mineral Mastery - Seismic - Magnetic
Freeware Mars Map: High Resolution Orbiter Camera Global Mosaic

Rock Identification Key
A Beginner's Guide and Key to Help You Identify and Put a Name on That Rock!
Learn to ID and Distinguish Basalt, Diabase, Diorite, Gabbro, Granite, Obsidian, Pumice, Rhyolite, Scoria, Gneiss, Marble, Quartzite, Schist, Serpentinite, Slate, Breccia, Conglomerate, Limestone, Sandstone, Shale...

Mineral Identification Key
An Online Guide and Key to Aid in the Identification of Field Collected Mineral Specimens
Covering Several Hundred of the Most Commonly Occurring and Collected Species

Visit Our New Store!


Crystallography and Mineral Crystal Systems
An Illustrated, Nine-Part Primer on Crystallography and Mineral Crystal Systems

Mineral Nomenclature: Naming New Minerals
So You've Discovered a New Mineral and Want to Name It "Spottite" After Your Dog...

Changes In Mineralogical Nomenclature: Varieties
Why Rock Scientists Won't Understand the Question When You Ask "What mineral is amethyst a variety of"?

Grand Hikes
A Virtual Tour and Rockhound's Hiking Guide for the Grand Canyon
Stromatolite Fossils in the Hakatai Shale - A Day Hike from Phantom Ranch
Comanche Point Vicinity - An Overnight Hike to Spectacular Grand Canyon Supergroup Views
Genesis V2.0 - God's Grand Work Week - A Grand Canyon Geology Primer
The 1869 Expedition - An Account of the First Grand Canyon Float Trip
Grand Hikes Screen Saver V1.0 - A Complimentary Grand Canyon Screen Saver
Bob's Grand Canyon Backcountry Equipment Checklist - Don't Leave Home Without It!

A Faceted Gemstone Design for CZ Inspired by the Pleiadians - Designed by Bob Keller

Perfect Transfer
Interested in Faceting? Check Out this Feature for Faceters!
Featured Cut: Santa's Little Helpers - Rose Cut Spheres
Gateway to Gemstone Designs on the Internet - Download Over 300 Faceting Diagrams with Cutting Instructions!
Browse and Download the Freeware Faceters Companion CD
Currently Featured Article: A Graphical Presentation of Brightness in the Standard Round Brilliant
Index of Online Faceting Articles - Faceting How-to and Tips from Many Facetors and Gemstone Designers!
Online Tangent Ratio and Gem Weight Calculators
Content and Information for Faceters

Santa's Little Helper I Santa's Little Helper II
Manuals for Vintage Lapidary Equipment
Need the manufacturer's manual for your estate sale find?

Greetings from Tucson
Our Shows, Museums, Clubs, Rock Shops, and Other Attractors

Snapshots from the Tucson 2007 Gem and Mineral Show

Tucson Gem and Mineral Show Reports
Browse the Tucson Gem and Mineral Show with Bob!

Visit Our Online Store For Faceters!
Ultralaps & Lap Containers   Dopping Supplies   Faceting Accessories & Displays   Loupes & Optivisors   Polishes   Saw Blades & Coolants   Cobbing Kit   Dichroscopes   Faceting Books, CDs & Videos   Check Out Our Closeouts & Specials  

How to Wirewrap
A Step-by-Step Pendant Design for Faceted Stones that Does Away With Claws

Sworn to Fun
A Club President's Perspective on the Decline of Rockhounding

Featured Articles by John Betts
Advice for Beginners
Anthony's Nose, New York
A Field Guide to Mineral Collectors  
Mineral Prices: Why so High?
Dealing with Dealers
Mineral Cleaning
Largest Mineral Crystals on Record
Display Lighting of Minerals

The Great Fresnoite Discovery of 1998
Scott's Big Score in California's San Benito Mountains

Rough for Faceters    Check Our Specials!
Natural:   Amethyst   Ametrine   Bytownite   Chrome Diopside   Chrysoberyl   Citrine   Garnet   Petalite   Quartz   Sapphire   Spinel   Spodumene   Tanzanite   Topaz   Tourmaline   Zircon  
Synthetics:   Cubic Zirconia   Quartz   Laser Gem / Glass   Emerald   Red Beryl   Alexandrite   Spinel  

Rockhounding Graves Mountain
Collecting Rutile and Other Minerals at this Famous Georgia Locality

Collecting at the Bunker Hill Mine
Ron and Rose-Marie's Most Excellent Bunker Hill Mine Adventure

Gypsum Rosettes
Collecting at the Red River Floodway in Winnipeg, Canada

Micromounter's Mecca
A Visit to the Micromounter's Swap Room at the Tucson Gem and Mineral Show
Check Out Tim Jokela's The Top Ten Reasons to Get Into Micromounting

Anatomy of a Three-Headed Sphere Machine
Interested in Rolling Your Own?

Cabochon Making 101
Cabbing with Tucson's Old Pueblo Lapidary Club

An Introduction to the Feldspar Minerals by Anita D. Westlake

Purple Passion Prospect
Wulfenite Collecting near Wickenburg, Arizona

Rock and Fossil Stamps of the United States
A Preview Page of the Shop's Topical Stamp Catalog for Rockhounds

Mineralogical Meanderings
The Hardness of Minerals and Rocks
Streaking Minerals - Streak Testing
Collecting Micrometeorites
Identifying True Amber
Some Surefire Signs You're a Rockhound
Collecting Rock Stamps
Gem and Mineral Phonecards
The Mysterious Power of Gemstones and Crystals

Bob's Rock Shop 1st WWW Specimen Image Contest Results!
Do You Take Pictures of Rocks? If So, You'll Appreciate These - Check Out the Winning Entries!
Winners competed for custom specimen mounting, mineral specimens, rockhound magazine and newsletter subscriptions, specimen labeling and mineral database software and more... These and other outstanding entries will also be featured in a new version of the Shop's ever popular freeware specimen image screen saver!

Cabochons On Sale:   1   2   3   4   5   6   7   8   9   10   11  
Cabochon Galleries:   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20   21   22   23   24   25   26   27   28   29   30   31   32   33   34   35   36   37   38   39   40   41   42   43   44   45   46   47   48   49   50   51   52   53   54   55   56   57   58   59   60   61   62   63   64   65   66   67   68   69   70   71   72   73   74   75   76   77   78   79   80   81   82   83   84   85   86   87   88   89   90   91   92   93   94   95   96   97   98   99   100   101   102   103   104   105   106   107   108   109   110   111   112   113   114   115   116   117   118   119   120   121   122   123   124   125   126   127   128   129   130   131   132   133   134   135   136   137   138   139   140   141   142   143   144   145   146   147   148   149   150   151   152   153   154   155   156   157   158   159   160   161   162   163   164   165   166   167   168   169   170   171   172   173   174   175   176   177   178   179   180   181   182   183   184   185  
Calibrated Cabochons Galleries:   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17  
Wholesale Cabochons Galleries:   1   2   3   4   5   6  
Faceted Stones:   1   2   3   4  
Pearls:   1  

Book and CD Reports
Dana's New Mineralogy, Eighth Edition
Encyclopedia of Mineral Names, Special Publication 1 of The Canadian Mineralogist

Gallery of Mineral Specimen Images
George Campbell
Ken Colosky
Martin Friedlander
Bob Keller
David Michaels
D.E. Russell
Tim Schmanski
Stuart Wilensky
Wayne State University
Ron Zeilstra

Cut Rocks
Rock Knives by Stephen Hill
Sections from Brian Isfeld
Slabs and Cabs

Agate   Alabaster   Alunite   Angelite   Assortments   Astrophyllite   Aventurine   Block Simulant   Cacoxenite   Calcite   Chalcedony   Charoite   Chrysocolla   Chrysoprase   Coral (Fossilized)   Dinosaur Dung (Coprolite)   Dolomite   Eudialite   Fossil Shell (Coquinite)   Goldstone   Graphic Stone   Hypersthene (Bronzite)   Indian Paint Rock   Ivoryite   Jade   Jasper   Jet   Lapis Lazuli   Larimar   Lepidolite   Marble   Obsidian   Petrified Wood   Pipestone   Printstone   Psilomelane   Quartz   Rainbow Pyrite   Rhodonite   Rhyolite   Ruby-in-Fuchsite   Seraphinite (Clinoclore)   Serpentine   Shell   Soapstone   Sodalite   Tiger Eye   Todolite   Travertine   Tumbling Rough   Turquoise   Unakite  

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RockWare Earth Science Software
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Bob Keller