Split open like nature’s geode piñata, this amethyst cathedral reveals a secret purple universe that formed over millions of years. Photo Credit: Travis A Children are predictably enchanted by this ...

Liquid carbon formed using a high-energy laser Using pulses of an ultrabright X-ray free-electron laser, the structure of liquid carbon was determined at pressures exceeding one million ...

Meteors from the Eta Aquariids, known for their speed and created from space debris originating from Halley's comet, will zoom across the sky as the shower peaks.

Epigenetic formation of amethyst-bearing geodes from Los Catalanes gemological district, Artigas, Uruguay, southern Paraná Magmatic Province. Jour Volc Geoth Res 184: 427-436.

NATIONAL GEOGRAPHIC Break Open 10 Premium Geodes - Includes Goggles and Display Stands - Great STEM Science Kit, Geology Gift for Kids, Geodes Rocks Break Your Own, Toys for Boys and Girls ...

In this paper, we present biconditional binary decision diagrams (BBDDs), a novel canonical representation form for Boolean functions. BBDDs are binary decision diagrams where the branching condition, ...

A group of students at the Warren County Christian School are working to figure out just where geodes come from and how they came to be. Essentially a partially hollow stone with – when fully formed – ...

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Large violet crystals of amethyst pierce the center of the geodes. Researchers have debated whether the gem-studded geodes formed from hot magmatic fluids or cooler liquids seeping into the rock.

Geodes are hollow rock filled with dazzling crystals. I'm at the American Museum of Natural History in New York City and behind me is an amethyst geode that was formed millions of years ago.

New research from the University of Göttingen reveals that amethyst geodes in Uruguay formed at low temperatures from groundwater-like fluids, proposing a new model for their formation based on ...