Rhyolitic geode Chalcedony red and crystals of quartz lining the central hollow formed inside a piece of rhyolite rock surrounding structure The geode has been cut open and polished to show its internal structure and improve its appearance A geode forms when layers of the mineral silica silicon dioxide precipitate from liquid onto the inside of hollows in rock An amorphous form of silica chalcedony forms the banded layers seen with haematite an iron oxide colouring it red The inner parts form last and are pure crystalline silica quartz Volcanic rock like rhyolite has spaces suitable for the formation of geodes This geode is from the Esterel region of France
Art is the best way of seeing the world when travel isn’t possible. Explore our curation of travel art for a trip around the globe. See from tourist favorites landmarks–the Eiffel tower– to hidden gems like the breathtaking landscapes of Yosemite National Park.
Whether you find a cozy reminder of home, your dream destinations, or even cool maps of the world, our handcrafted frames will give it the perfect finishing touch.