Rock & Gem - 2022-12-01

• Editor’s Letter
• “THE SPANISH STONEHENGE” RESURFACES
• Using Deep Learning to View the Rich Data of Seismology
• Earth’s Crust and the Milky Way
• Want a Dino?
• Did Dinos Die From a One-Two-Three Punch?
• AFRICA’S OLDEST DINO
• Detecting Earthquake­s from Above Both Here —and on Venus?
• Whither the Koh-i-Noor Diamond?
• When Did We Become Warm-Blooded?
• A New Member of the Human Family Tree?
• e Webb Space Telescope It’s Not Just for the Stars!
• e Chimeric Dream to Forecast Volcanic Eruptions
• Bonus: Stocking Stu ers
• The Pleasures and Perils of Competitiv­e Exhibiting
• What Comments Are Helpful—or Not
• Takeaways for Exhibitors:
• 5 Tips for Rock Business Success
• PAIL Treasures !
• ROCK & GEM FIELD GUIDE: Barite
• NIPOMO MARCASITE
• CURVED RIDGES & SHAPED TIPS
• THE MAGIC OF MARBLE
• Volcanoes and Emeralds

Rock & Gem - 2022-11-01