Rock & Gem - 2021-12-01

• Who’s Hardest Now?
• WITH GREAT BOUNTY COMES GREAT CONTROVERS­Y
• The Sweet Smell of Extinction?
• GETTING TO THE CORE of an Ancient Martian Lake
• In Days of Old, a Bite in the Face Wins a Date?
• “What is a Planet?”
• Could Sea Level Changes Ignite Volcanic Eruptions?
• When Cavities Began
• BIBLICAL GEMSTONES
• BIBLICAL METALS
• THE “EILAT STONE”
• ONLINE RESOURCES
• CAPTURE PRECIOUS METALS IN THE STUDIO
• Larkin Hamilton
• YELLOW APATITE
• Collecting Bubblegum Agate
• Know the Rules
• How is Chalcedony Used?
• Before & After
• What is Microcryst­alline Quartz?
• GEOLOGIC RIFTS
• POTASH MINERAL SCIENCE

Rock & Gem - 2021-11-01

Rock & Gem - 2022-01-01