Rock and Gem

Rock & Gem is the leading publication for rockhounds, lapidary and mineral enthusiasts. Serving the community since 1971, Rock & Gem’s print issues include identification guides, Rock & Gem Kids, must-see travel destinations, step-by-step projects, fascinating features, and expert lapidary and faceting insights. Our active readership reaches day-to-day collectors plus an organized rockhound community and network of clubs, including the American Federation of Mineralogical Societies.

Editor’s Letter

Rock and Gem

What Really Caused the Biggest Extinctions?

To Create New Species, Raise High the Mountains

Pterosaurs Are Flying High!

Is Earth’s Mantle More Interesting than Imagined?

Finding the Phosphorus Feeding Early Life

The New Moons of Saturn But are they really moons?

Deep Aquifers Aren’t Easily Recharged

The Color of Early Mammals? • Pretty dull!

The More Things Change, the More They Stay the Same • Eucalyptus trees have been bugged for 52 million years!

A Moon as Old as Earth? • Almost!

Earth’s Oldest Impact Crater Yet

Jolted Alive by Microlightning?

Kingston New Mexico Quartz Crystals • Finding Starburst Quartz Crystals in the Black Range

HARDROCK GAMES • The Enduring Appeal of Mine-Drilling Contests

The Northern Arc of the Pacific Ring of Fire • Geology of Alaska & the Aleutian Islands

State Rocks, Minerals & Gemstones • A Collective Look at our Geosymbols

SUNSET PEAR

ROCK & GEM FIELD GUIDE: Emerald

THE FIREWORKS INSIDE AN OPAL

POLISH FLINT

Exploring Oregon Beach Fossils

Not All Gold Is Created EQUAL • Understanding the Differences Between Colors & Alloys

Bound by Earth, Forged by Friendship

Show Dates • TO VIEW MORE CALENDAR DATES VISIT ROCKNGEM.COM.

THE GEOLOGY OF WINE

Parting Shot • ROCKS, MINERALS AND JEWELRY