COINage Magazine
Silvano DiGenova's Top 5 Coin-Buying Tips
LEARN FROM THE EXPERT WHO SOLD OVER $10 BILLION IN PREMIUM COINS
5 min |
October - November 2025
COINage Magazine
Setting the SILVER STANDARD IN U.S. COINS
AFFORDABLE SILVER COINS SHINE AT AUCTION
8 min |
October - November 2025
COINage Magazine
RAELEEN ENDO
OVERSEEING GREATCOLLECTIONS AND $1.5 BILLION IN COIN SALES
4 min |
October - November 2025
COINage Magazine
ALL THAT Glitters IS INSIDE FORT KNOX IS ANY OF THE GOLD MISSING?
In 1933, America was reeling from the Great Depression, which had followed on the heels of the Stock Market Crash of 1929.
10+ min |
October - November 2025
COINage Magazine
Privy Marks OF THE UNITED STATES MINT
SYMBOLS OF HISTORY THAT ADD MARKETING APPEAL
8 min |
October - November 2025
COINage Magazine
COINage Wins 2025 Numismatic Literary Guild Award
COINage magazine was honored with the “Best Professional Periodical” award for 2025 from the prestigious Numismatic Literary Guild.
1 min |
October - November 2025
COINage Magazine
CELEBRITY MINT CREATES NEW GOLD AND SILVER NUMISMATIC COLLECTIBLES
EACH IS PERSONALLY SIGNED BY LEGENDARY ATHLETES
2 min |
October - November 2025
COINage Magazine
Coin Dealer Group Adds 60 New Members
When John Feigenbaum became the full-time executive director of the Professional Numismatists Guild (PNGdealers.org) in August 2023, he declared one of his major goals was to change what he described as the “unfair perception that the PNG is an exclusive organization with its doors open to only a few powerful dealers.”
1 min |
October - November 2025
COINage Magazine
NEW PHYSICAL BITCOINS AS GOOD AS GOLD?
Both bitcoin and gold have hit record highs in recent months and show no signs of retreat.
3 min |
October - November 2025
COINage Magazine
Why We Like IKE DOLLARS
COLLECTING EISENHOWER DOLLARS FOR FUN & PROFIT
7 min |
October - November 2025
Rock&Gem Magazine
President Lincoln AND THE MAD STONES
More terrifying than any werewolf to 19th-century America was its real-life counterpart: hydrophobia. Rabies.
6 min |
October 2025
Rock&Gem Magazine
The Minerals of Transylvania
Whether you're in it for science, beauty, spooky stories, or all of it, Transylvania's minerals offer a little something for every rockhound. Deep in the heart of Romania, the Carpathian Mountains are known for gothic lore and vampire legends. In this land of Dracula, Transylvania's rugged geology, shaped by volcanic activity, has made it one of Europe's most mineral-rich areas.
2 min |
October 2025
Rock&Gem Magazine
PENNSYLVANIA'S FOSSIL FOREST
Some 300 million years ago, near the town of St. Clair, Pennsylvania, the land was covered by lush green forests with a wide variety of plants and trees.
3 min |
October 2025
Rock&Gem Magazine
THE GEOLOGY OF GRAVESTONES
Along with black cats, witches and jack-o'-lanterns, cemeteries are iconic symbols of Halloween—and for good reason. Shrouded in mystery, superstition and folklore, they can elicit feelings of foreboding and fear.
4 min |
October 2025
Rock&Gem Magazine
Eternal Brilliance
The 71-Million-Year Journey of Ancient Ammonites
6 min |
October 2025
Rock&Gem Magazine
Monitoring Offshore Trenches in Quake-Prone Japan
Residing as it does smack on the Pacific Ring of Fire, where oceanic crust plunges into the mantle, Japan sees more than its share of major earthquakes and tsunamis.
1 min |
October 2025
Rock&Gem Magazine
The World's Oldest Rock Where is it, really?
It sounds like something a politician would spout. The U.S. is best! It sports the “World’s Oldest Rock!” Don't believe it? Why, it says so in bold brass print on a sign near Granite Falls, Minnesota. Said rock is called the Morton Gneiss and supposedly clocks in at 3.8 billion years old. But is it truly the oldest?
1 min |
October 2025
Rock&Gem Magazine
Kissed by a Visitor from Deep, Deep Space
It was first spotted as a dot in July. It's an ice-rich body. It originates from far outside our Solar System. And it’s believed to be 7 billion years old—3 billion years older than the Sun! Say hello to 3I/ATLAS, the oldest comet ever observed by human eyes.
1 min |
October 2025
Rock&Gem Magazine
Earthquake Generation
It's not always location, location, location!
1 min |
October 2025
Rock&Gem Magazine
The Best Archaeopteryx Yet
Archaeopteryx has been an icon in the world of paleontology ever since the first one was uncovered in 1861.
1 min |
October 2025
Rock&Gem Magazine
Stalactite Mineral Specimens
A Fragile & Fascinating Way to Build a Collection
6 min |
October 2025
Rock&Gem Magazine
CRYSTAL SKULLS
A Tale of Fascinating Fakes
7 min |
October 2025
Rock&Gem Magazine
HOW TO NAME A DINOSAUR
Learn all about it-then coin a name of your own!
5 min |
October 2025
Rock&Gem Magazine
The Black Prince's Ruby and Other Cursed Gems
Submitted for your consideration: A collection of gems whose acquisition has often been synonymous with terrible loss but whose sparkle still holds fatal attraction. Meet some of the most cursed and feared - gems in history.
7 min |
October 2025
Rock&Gem Magazine
Ancient Proteins Survive Much Longer than Expected and offer new insights into rhino evolution
In paleontology, the old days of pick-and-shovel and drawing evolutionary relationships based on anatomy alone may not be long gone, but they’re certainly being overshadowed by advances in the lab.
1 min |
October 2025
Rock&Gem Magazine
Unraveling the Evolutionary History of Squids with "Digital Fossil-Mining"
Squids are squiggly soft-bodied creatures able to dart quickly in the ocean. But soft bodies present a problem for paleontologists. With rare exceptions in so-called Lagerstätte deposits, they seldom fossilize.
1 min |
October 2025
Rock&Gem Magazine
New Appreciation for a 35 Million-Year-Old Tsunami
Mention death and destruction by bolides, and all eyes turn to the Chicxulub impactor that took out the dinosaurs 66 million years ago.
1 min |
October 2025
Rock&Gem Magazine
Details of the Sea Floor Emerge from the Deep
As I reported in August, less than 0.001% of the deep sea floor has been seen by direct visual observation, either by human eyes or cameras in research submersibles.
1 min |
October 2025
Rock&Gem Magazine
Is Earth's Magnetic Field Linked to Atmospheric Oxygen?
The scientists making the observation were surprised. A time series analysis of geological records over the past 540 million years of Earth history seems to show a highly correlated link between oxygen levels in the Earth's atmosphere and the strength of the planet's magnetic field, and both seem to be slowly increasing in sync.
1 min |
October 2025
Rock&Gem Magazine
FROM THE FIRES OF HELL
Sulfur: A Natural History
6 min |