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Rock Talk
- Join Us on the Rock Net Discussion Group and Message Forum for Rockhounds!
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US Club List
- An Extensive Listing with Contact Info for Over 900 Mineralogical, Lapidary, Fossil and Just About Anything to Do with Rocks Clubs in the United States.
Hey Rockhounds - Check Out This Outstanding Value:
The Photo-Atlas of Minerals DVD V2.0
New Low Low Price - Now Only $19.95 !!!
Order The Photo-Atlas of Minerals DVD
Version 2.0 DVD-ROM for Windows
Sample Photo-Atlas DVD Screens:
Formerly sold at $59.95, the Photo-Atlas of Minerals DVD is simply the most comprehensive mineral reference available. It principle features include:
- Nearly 16,000 high-resolution mineral specimen images
- Mineralogical data for all known mineral species (over 4,100)
- Mineral specimen images from over 3,500 localities
- Users can add their own images
- Comprehensive descriptive mineralogical and crystallographic data
- Audio mineral name pronunciations
- Origins of mineral names
- Mineral name synonyms and varieties
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- Searchable by properties, locality, chemistry, etc.
- User controlled crystal form drawings
- User controlled atomic structure drawings
- Includes both Dana & Strunz mineral classifications
- Glossary of mineral terms
- Users can print the mineral images and data
- Generates random and user defined slide shows
- Includes a mineral identification game
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Greetings from Tucson
- Our Shows, Museums, Clubs, Rock Shops, and Other Attractors
Alone No More
- Martian Meteorite ALH84001 Harbinger of Extraterrestrial Life
- Check out Bob's Martian Touchdown - A Rockhound's Cosmic Encounter with Three Extraterrestrials
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Phoenix Mars Lander Touchdown!
The Mars Phoenix spacecraft has successfully landed on Mars farther north than any previous mission at 68 degrees north latitude, equivalent to that of northern Alaska, where water is believed to exist in the form of ice just below the Martian surface.
Phoenix is equipped with some of the most sophisticated and advanced technology ever sent to Mars. The complement of the Phoenix spacecraft and its scientific instruments are ideally suited to uncover clues to the geologic history and biological potential of the Martian arctic.
During the course of its three-month mission, a robust robotic arm will dig through the soil to the water ice layer underneath and deliver soil and ice samples to the mission's experiments. On the deck, miniature ovens and a mass spectrometer will provide chemical analysis of trace matter. A chemistry lab-in-a-box will characterize the soil and ice chemistry.
Sophisticated maging systems will provide an unprecedented view of Mars spanning 12 powers of 10 in scale. A meteorological station will record the daily weather of the Martian northern plains using temperature and pressure sensors and will play an important role by providing information on the current state of the polar atmosphere and how water is cycled between the solid and gas phases in the Martian arctic.
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| Aug 25, 2008: |
Phoenix Lander Digs Deeper As Third Month Nears End |
| Aug 21, 2008: |
Mid-Depth Soil Collected for Lab Test On Phoenix Mars Lander |
| Aug 20, 2008: |
Phoenix Mars Lander Explores Site by Trenching |
| Aug 14, 2008: |
Phoenix Microscope Takes First Image of Martian Dust Particle |
| Aug 9, 2008: |
Soil Studies Continue at Site of Phoenix Mars Lander |
| Aug 5, 2008: |
Phoenix Mars Team Ponders Perchlorates |
| Aug 4, 2008: |
Phoenix Mars Team Analyzing Martian Soil Data |
| Jul 31, 2008: |
Phoenix Confirms Martian Water, Mission Extended |
| Jul 29, 2008: |
Close-Up Images of 'Snow Queen' Show Changes |
| Jul 28, 2008: |
Phoenix Mars Lander Working With Sticky Soil |
| Jul 27, 2008: |
Phoenix Revises Method to Deliver Icy Sample |
| Jul 26, 2008: |
Lander Collects Icy Soil But Needs to Work on Delivery |
| Jul 25, 2008: |
Phoenix Scoop Ready for Sampling |
| Jul 24, 2008: |
Trench on Mars Ready for Next Sampling by Phoenix Lander |
| Jul 23, 2008: |
Phoenix Mars Lander Prepares for Next Sample Analysis |
| Jul 22, 2008: |
Phoenix Completes Longest Work Shift |
| Jul 21, 2008: |
Phoenix Mars Lander Works Through the Night
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| Jul 18, 2008: |
Phoenix Mars Lander Continues Tests with Rasp |
| Jul 17, 2008: |
3-D Views Posted From Phoenix Mars Lander |
Phoenix Mars Lander in the News
- NASA Says Perchlorate Does Not Rule Out Life On Mars: The discovery of an unexpected chemical in Martian soil - one that is considered hazardous here on Earth - says little by itself about the possibility of life on Mars.
- Surprising Signal: Martian soil shows traces of perchlorate, an unexpected chlorine compound.
- NASA Quashes Rumors Of Life On Mars: The fuss started with a relatively restrained news story posted on SpaceRef.com headlined "White House Briefed On Potential For Mars Life."
- Officially Ice: Oven bakes out water - Phoenix mission successes lead to longer lander life.
- Tasting Ice: Phoenix Mars Lander ready to analyze ice if the oven bakes the sample without short-circuiting.
- Pay Dirt: Martian Soil Fit For Earthly Life: Martian soil around the Phoenix lander is slightly alkaline and has enough different minerals that it could support Earth plants and more to the point - microbes - beneath the Martian surface
- Mars OK For Life, So Far: "You could grow asparagus".
- Martian Soil Hints At Water, Nutrients: The first analysis of Red Planet dirt by the Phoenix lander shows what may be some of the requirements for life.
- Our Eyes On Mars: How The Phoenix Lander Sees: If you leave your camera at home on a long vacation, you can buy a disposable one. But that's not an option if you have traveled 422 million miles to another planet.
- Phoenix Touches Martian Ice: NASA's "follow the water" approach to finding life - or evidence of past life - on Mars has finally hit pay dirt.
- Ice On Mars : The Red Planet's white stuff is ice after all.
- Phoenix Finds Ice On Mars: The Mars Phoenix Lander has found ice on the surface of the red planet, a key discovery for the spacecraft as it searches for water and signs of life.
- Disappearing Bright Specks Show Mars Has Ice: Bright crumbs that were visible in one of the trenches dug by the Phoenix Mars Lander are no longer there - leaving mission scientists with only one conclusion: the material was ice that vaporized directly from the solid form in the dry, frigid Martian polar atmosphere.
- Phoenix Probes Martian Soil: The first soil sample baked in the Phoenix Mars Lander shows no signs of water.
- Phoenix Makes First Trench In Science Preserve: The Phoenix Mars Lander has begun digging in an area called "Wonderland", taking its first scoop of soil from a polygonal surface feature within the "national park" region that mission scientists have been preserving for science.
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| Microscopic view of small clumps of fine, fluffy, red soil particles collected in a sample called 'Rosy Red' at the tip of the robotic arm scoop as seen by the robotic arm camera. Some of the Rosy Red sample was delivered to Phoenix's Optical Microscope and Wet Chemistry Laboratory for analysis. |
Rocks in the News
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- Not-So-Permafrost: New estimates show that frozen Arctic soil contains far more potential greenhouse gas than previously recognized - and could speed climate change as it melts
- Yellowstone's Ancient Supervolcano 'Lukewarm': New research indicates the Yellowstone hotspot is 'only' 50 to 200 degrees Celsius hotter than its surroundings.
- Did Rumbling Give Rise To Rome?: Thirteen of fifteen major ancient civilizations clustered mostly along tectonic boundaries.
- Firm Evidence That Earth's Core Is Solid : Long-sought seismic waves confirm models of Earth's structure.
- Time To Chill: New fossil finds from an ancient lake indicate when Antarctica dipped below freezing.
- Titan Has Liquid Surface Lake: The visual and infrared mapping spectrometer on the Cassini orbiter reveals that a 7,800 square mile lake-like feature in the south polar region of Saturn's moon Titan is truly wet.
- Clarity, Color, Cut, Carat and Chromosomes?: Billions of years ago, the surface of diamonds may have provided just the right conditions to foster the chemical reactions believed to have given rise to life on Earth.
- Take A Deep Breath - And Thank Mount Everest: Next time you pause to view a scenic mountain vista, consider that the oxygen your lungs are taking in resulted from the same process that raised those peaks.
- Where There's Smoke, There's Ice: Smoke transported to the Arctic from northern forest fires may cool the surface for several weeks to months at a time, according to the most detailed analysis yet of how smoke influences the Arctic climate relative to the amount of snow and ice cover.
- Come On In, The Water's Fine: From a sweltering Jacuzzi to a tepid bath. When the world's oceans experienced such a drop in temperature almost a half-billion years ago, life exploded.
- Dinos: Ahead Of The Evolutionary Curve?: A new analysis challenges the idea that dinosaur diversity boomed at the same time flowering plants began taking root across Earth.
- Sahara Desert Dust Storms Sustain Life In Atlantic Ocean: The dust fertilises the North Atlantic with minerals that allow phytoplankton to recyle organic phosphorous, a highly reactive chemical that is scarce in sea water.
- Volcanic Eruptions May Have Wiped Out Ocean Life 94 Million Years Ago: Undersea volcanic activity triggered a mass extinction of marine life and buried a thick mat of organic matter on the sea floor about 93 million years ago, which became a major source of oil.
- Moon Walkers Face Dust Health Hazard: Lunar astronauts reported irritation and discomfort from exposure to ubiquitous sharp-edged, chemically active moon dust, with symptoms ranging from sneezing, watery eyes and a peculiar smell resembling gunpowder.
- Saturn Moon May Host An Ocean: Enceladus' geysers could have delivered sodium from its underground ocean and into Saturn's E ring.
More Rocks in the News
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:
- 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
Rock&Gem Craftsman of the Month Contest
- Got a Pet Project Your're Proud of and Want to Show Off?
- Win and Rock&Gem Magazine will Feature Your Work and Throw in a Dremel Tool to Boot
- Entry Details - Browse the Current and Prior Contest Winners
Subscribe to Rock&Gem Magazine
- Enjoy and Learn from Rock&Gem Magazine for less than $1.00 per Issue!
- Need to Change Your Address for a Rock&Gem Magazine Subscription?
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
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!
Alcyone
- 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!
- Currently Featured Cut: Spinning Wheel 40
- 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
Tucson Gem and Mineral Show Reports
- Browse the Tucson Gem and Mineral Show with Bob!
How to Wirewrap
- A Step-by-Step Pendant Design for Faceted Stones that Does Away With Claws
Featured Articles by John Betts
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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
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
Feldspar
- 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!
Product Reviews
- The Photo-Atlas of Minerals CD
- OsoSoft MineralLabel 5.0 - Now Freeware!
- Belomo 10x Loupe: An Inexpensive Russian Triplet
- GemOro Stereo Microscope
- Meiji Techno Binocular and Trinocular Stereo Microscopes
- Raynox Video MicroExplorer
- $8 BIRI Russian Radiation Detector
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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
Sections
Slabs and Cabs
Bob's Rock Shop Furnishes Performance Based Advertising
for Participating Commercial Sponsors.
Thanks for your Patronage. Please Come Again Soon.
The Shop's Link List
- The Shop's Pick and Links to Thousands of Other Websites of Interest to Rockhounds
Bob Keller
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