Rock&Gem Magazine
HARDROCK GAMES
The Enduring Appeal of Mine-Drilling Contests
8 min |
July 2025
Rock&Gem Magazine
The Color of Early Mammals
Pretty dull!
1 min |
July 2025
Rock&Gem Magazine
State Rocks, Minerals & Gemstones
A Collective Look at our Geosymbols
8 min |
July 2025
Rock&Gem Magazine
POLISH FLINT
Flint has often been used throughout history and is thought to be as old as 160 million years.
2 min |
July 2025
Rock&Gem Magazine
Exploring Oregon Beach Fossils
There's an old saying that finding fossils in Oregon is not about where to look, but where not to look.
6 min |
July 2025
Rock&Gem Magazine
Jolted Alive by Microlightning?
Ancient asteroids hold all the right organic compounds for life, and those same compounds were likely present on early planet Earth-or delivered here by impacting asteroids.
1 min |
July 2025
Rock&Gem Magazine
Earth's Oldest Impact Crater Yet
Scientists estimate the age of Earth at 4.543 billion years.
1 min |
July 2025
Rock&Gem Magazine
To Create New Species, Raise High the Mountains
It seems like plain old common sense. Increase the complexity and diversity of topography and you'll increase biodiversity. But now we have strong data to support that hypothesis.
1 min |
July 2025
Rock&Gem Magazine
The More Things Change, the More They Stay the Same
Eucalyptus trees have been bugged for 52 million years!
1 min |
July 2025
Rock&Gem Magazine
Is Earth’s Mantle More Interesting than Imagined?
Earth has been described as a layered onion with an inner core, an outer core, a mantle and a crust.
1 min |
July 2025
Rock&Gem Magazine
Not All Gold Is Created EQUAL
Understanding the Differences Between Colors & Alloys
6 min |
July 2025
Rock&Gem Magazine
THE GEOLOGY OF WINE
At wine tastings today you're likely to find “flinty” sauvignon blancs, “chalky” Rieslings, and syrahs that “express the essence of limestone soil.”
4 min |
July 2025
Rock&Gem Magazine
The Northern Arc of the Pacific
Geology of Alaska & the Aleutian Islands
6 min |
July 2025
Rock&Gem Magazine
SUNSET PEAR
By day, Julia DeLo works as an engineer in the aerospace industry and by night, she pursues her passion for cutting gemstones, applying her analytical and mechanical skills to optimize and simplify designs.
2 min |
July 2025
Rock&Gem Magazine
Kingston New Mexico Quartz Crystals
Finding Starburst Quartz Crystals in the Black Range
8 min |
July 2025
Rock&Gem Magazine
The New Moons of Saturn But are they really moons?
If you'd been asked just a couple months ago, “How many moons circle Saturn,” you would have confidently answered, “Why, 146, of course!” Well, try 274!
1 min |
July 2025
Rock&Gem Magazine
Deep Aquifers Aren't Easily Recharged
Recent times have seen severe drought conditions and increased reliance on groundwater aquifers to draw fresh water to meet the needs of ever-expanding populations.
1 min |
July 2025
Rock&Gem Magazine
THE FIREWORKS INSIDE AN OPAL
Forget waiting for the Fourth of July.
4 min |
July 2025
Rock&Gem Magazine
Bound by Earth, Forged by Friendship
You can't fake a real connection — and you sure can't force five women to dig side-by-side through dirt, sweat and storms unless something powerful is holding them together.
3 min |
July 2025
COINage Magazine
DAVID CRENSHAW
PROTECTING COIN AND BULLION BUYERS & SELLERS
6 min |
June - July 2025
COINage Magazine
AMERICAN EAGLE BULLION COINS Flying High
40-YEAR ANNIVERSARY IN GOLD, SILVER, PLATINUM AND PALLADIUM
9 min |
June - July 2025
Popular Woodworking
Kellogg Depth Gauge
Sometimes, having a simple tool is best. That doesn't mean that your simple tool can't be fancy, however.
1 min |
July - August 2025
Popular Woodworking
Kreg Mortise Mate
Kreg Tool, known for their innovations in pocket hole jigs, recently launched their new loose tenon joinery jig, called the Mortise Mate.
1 min |
July - August 2025
Popular Woodworking
Finishing Schedule
Finishing figured wood is an intimidating thing. You have a special material and you want to apply a finish that is going to enhance the figure that's already there. Here is my oil-based approach to most curly woods.
1 min |
July - August 2025
COINage Magazine
If Pennies are Doomed, is the Nickel Next?
CALLS FOR THE NICKEL TO BE DISCONTINUED
4 min |
June - July 2025
COINage Magazine
MARKING MOMENTS IN TIME WITH PHYSICAL BITCOINS AND CRYPTOCURRENCY
SPECIAL OCCASIONS CAN BE RECOGNIZED WITH PRECISION
2 min |
June - July 2025
Popular Woodworking
Dust Collection Workstation
This dust collection cart houses a vacuum and cyclonic dust separator for an efficient, clean workstation.
8 min |
July - August 2025
Popular Woodworking
Pliers from Vampire Tools
I think that there are certain tools that everyone owes it to themselves to own a nice set of.
1 min |
July - August 2025
Popular Woodworking
Shaker Side Table
The late Thomas Moser popularized Shaker design. This side table is my ode to him and his contributions to the woodworking community.
9 min |
July - August 2025
Popular Woodworking
Jet JBS-18 Bandsaw
A bandsaw is a wonderful tool. It can make cuts that follow curves, cut joinery, size parts, and resaw material.
1 min |