More from the Mazatlan area. I am trying to get better about choosing the best ones. It’s hard. So many agates on one of the beaches. Beautiful banded rhyolite on another #geoogy #rockhound #rockhoundingadventures #agate #volcanics #sailing

Kitchen experiments shed light on Mars's volcanic rootless cones Rootless cones are small volcanic landforms ranging from several to several hundred meters in diameter, formed by continuous explosions resulting from the interaction between surface lava and water bo...

Explaining Martian rootless volcanic cones with baking soda and syrups :)

#geoogy #Mars ⚒️🧪