Rock & Gem - 2021-11-01

• The Earliest Animal on Earth?
• Electric Volcanoes?
• POLAR DINOS ENDURED AND THRIVED IN THE ARCTIC
• Stretching the Bounds of Early Life on Earth
• As Ice Melts, the Crust Moves
• ELEPHANTS!
• Longer Days May Not Be All That Bad
• Are the Boley chert breccia clasts truly agate? Neil Suneson, William Lyon and David Goza di erentiated the chert pebbles and cobbles found in the Boley Conglomera­te as follows.
• DIGGING FOR FISH WITH A HAMMER & CHISEL
• Joseph J. “PaleoJoe” Kchodl
• THE RULE OF THIRDS
• LIGHT PLACEMENT
• What is the Difference Between Mother-of-Pearl and Abalone?
• A Personal Interest
• An Arizona Rock Shop Treasure
• SCHILLER EFFECT
• GLACIER ICE AGATE
• Greek Silver Mines
• The Carnegie Museum of Art
• The Hillman Hall of Minerals & Gems
• Stunning Specimens
• Pegmatite Gems
• Dinosaur Exhibit
• Personal Specimens on Display
• All Things Pennsylvan­ia
• Minerals of Pennsylvan­ia
• The Wertz Gallery of Gems & Jewels
• Helen SerrasHerm­an,
• HOW TO MAKE THE MOST OF MILKY CHALCEDONY
• CARNOTITE USES MAKE IT THE “TRIPLE” ORE
• NOVEMBER 2021
• Rock & Gem Classified
• OBSIDIAN 101
• “Snowball” Geode

Rock & Gem - 2021-10-01

Rock & Gem - 2021-12-01