Rock&Gem Magazine
Tracking Our Four-Footed Ancestors
The family history gets older & older!
1 min |
September 2025
Rock&Gem Magazine
A Fossil Mollusk? Sponge?
Just what IS this weird creature??
1 min |
September 2025
Rock&Gem Magazine
DUNCAN POPPY JASPER
Every year comes the chance to find something new, whether in the field or the marketplace. This year, a new type of jasper appeared in the rockhound community on Facebook, catching quick attention for its bright variety of colored poppy jasper.
2 min |
September 2025
Rock&Gem Magazine
SPACE ROCKS
Exploring the Asteroid Belt's Ancient Rocks
5 min |
September 2025
Rock&Gem Magazine
The Amazing Mineral Magic Show
Wowing Kids & Adults Alike!
7 min |
September 2025
Rock&Gem Magazine
June: The Season for Weddings—and Volcanoes?
While geologists insist Earth is experiencing no more volcanic activity than usual, you wouldn't know it if examining headlines last June. In addition to prospects of an eruption off the Oregon coast, here are a few other headlines clipped from newspapers worldwide.
1 min |
September 2025
Rock&Gem Magazine
Red Amber
One valuable doorstop!
1 min |
September 2025
Rock&Gem Magazine
Birds Embraced the Arctic Almost Since Birds Began!
Many birds migrate to Arctic nesting grounds while others settle in year-round. As many as 280 species either visit or claim the Arctic as home.
1 min |
September 2025
Rock&Gem Magazine
Is Earth Leaking from the Middle?
Traditional wisdom holds that material contained within Earth's core is somewhat fixed and stays deep down.
1 min |
September 2025
Rock&Gem Magazine
Deinosuchus
An alligator no more!
1 min |
September 2025
Rock&Gem Magazine
SALAR DE UYUNI
While relatively few people have ever visited the immense salt flat known as Salar de Uyuni (sa-LAR day ooh-yooni), millions have seen it on the big screen. In the 2017 movie Star Wars: The Last Jedi, Salar de Uyuni was the filming location for the fictional Crait, a small planet where white salt covers bright-red, mineral-rich soil, and the Resistance fought the First Order in a climactic battle.
3 min |
September 2025
Rock&Gem Magazine
Taking the Measure of Sloths through Time
They're tiny compared to their past glory!
1 min |
September 2025
Rock&Gem Magazine
Using Obsidian to Track an Empire
Obsidian is volcanic glass.
1 min |
September 2025
Rock&Gem Magazine
ROCK & GEM FIELD GUIDE: Oregon Sunstone
Sunstone is the transparent, gem-quality variety of the mineral labradorite, a calcium-rich feldspar in the plagioclase series.
1 min |
September 2025
Rock&Gem Magazine
Meramec Station Road Calcite
Finding calcite in Limestone Cliffs near St. Louis
7 min |
September 2025
Rock&Gem Magazine
MOSAIC
In January 2025, a group of designers was challenged to create or modify a design for iolite that would show off the gem's pleochroism and that would work for the material's lower refractive index and minimal dispersion. Jeffrey Hill's “Mosaic” is a straightforward design where rough can be oriented to showcase the greys and blues or oriented to show a mixing of the colors.
2 min |
September 2025
Rock&Gem Magazine
TERROIR FIRMER
Volcanic Basalt Shakes Up Snow Capped Cider
5 min |
September 2025
Rock&Gem Magazine
The Strongest Evidence Yet for Extraterrestrial Life! Or not.
It certainly made for splashy headlines. Nikku Madhusudhan (University of Cambridge) and colleagues announced in The Astrophysical Journal Letters that they detected chemical signatures similar to those produced by phytoplankton on Earth, which release dimethyl sulfide and dimethyl disulfide into the atmosphere.
1 min |
September 2025
Rock&Gem Magazine
Improved Alerts of Offshore Earthquakes
It is vital to get accurate readings of the place and time of offshore earthquakes, given their potential for spawning tsunamis and other extreme damage along highly populated coastlines prone to such quakes.
1 min |
September 2025
Rock&Gem Magazine
Subduction Is Alive & Well on Venus
Venus is often called Earth's Evil Twin.
1 min |
September 2025
COINage Magazine
Vintage U.S. Coins Dressed to Impress
DEMAND FOR QUALITY AND RARITY SHOWS MARKET DIRECTION
10+ min |
August - September 2025
COINage Magazine
U.S. Mint Superhero Series Features Superman
IT’S A BIRD! IT’S A PLANE! IT’S SUPERMAN COINS & MEDALS!
4 min |
August - September 2025
COINage Magazine
What Investors and Dealers Should Know About Selling Bullion
CLARIFYING SOME OF THE RULES FOR IRS FORM 1099-B
3 min |
August - September 2025
COINage Magazine
The 7 Wonders of the Coin Market for 2025 & Beyond
PROJECTED POPULARITY BASED ON PAST PERFORMANCE, CURRENT AND PREDICTED EVENTS AND METALS FORECASTS
7 min |
August - September 2025
COINage Magazine
Eric P. Newman Numismatic Education Society Announces Newman Grants
The Eric P.Newman Numismatic Education Society (EPNNES) announced its sixth set of Newman Grants, created to financially assist numismatic authors and organizations pursuing original research in American and world numismatics.
1 min |
August - September 2025
COINage Magazine
PHYSICAL BITCOINS BEGINNING JOURNEY AS COLLECTIBLES
MANY DISCARDED BECAUSE THEY WEREN'T PERCEIVED AS VALUABLE
3 min |
August - September 2025
COINage Magazine
Rush to Portable Wealth
FEVERISH DEMAND FOR HIGH-VALUE COINS IN AN ERA OF RISK
4 min |
August - September 2025
COINage Magazine
PCGS Expands Headquarters During Period of Continued Growth
Professional Coin Grading Service (PCGS.com) recently unveiled its new headquarters in a move that greatly increases office area for the third-party grading firm. The new PCGS headquarters includes more than 100,000 square feet of floor space and creates new and expanded areas for coin and banknote grading, encapsulation, customer service and other operations.
1 min |
August - September 2025
COINage Magazine
No, You Don't Have a $124 Million Penny
Recent online stories about “pennies” worth $124 million and billion-dollar 1976 Bicentennial quarter dollars are either false or grossly misleading, advises the Professional Numismatists Guild (PNGdealers.org), a nonprofit organization composed of many of the country’s top rare-coin experts.
2 min |
August - September 2025
COINage Magazine
PLATINUM IS GAINING STRENGTH
IS A DRAMATIC UPTICK ON THE WAY?
4 min |