A research team at the University of Göttingen, Germany, reported on its investigation into just exactly how amethyst forms ...

Amethyst is a violet variety of quartz which has been used as a gemstone for many centuries and is a key economic resource in northern Uruguay. Geodes are hollow rock formations often with quartz ...

Amethyst is a violet variety of quartz which has been used as a gemstone for many centuries and is a key economic resource in northern Uruguay. Geodes are hollow rock formations often with quartz ...

Amethyst geodes in Uruguay have been found in cooled lava flows, which date from the original breakup of the supercontinent Gondwana around 134 million years ago. However, their formation has ...

Along with Ametista do Sul in southern Brazil, these regions are the world’s leading mining districts for gems which come from volcanic lava, such as amethyst and agate geodes. Amethyst is a ...

As one of our resident wardrobe-basics experts, I’ve learned that a good white T-shirt is easy to find, but a truly great one — one that hits the marks on comfort and durability as well as ...

World-class amethyst-agate geodes from Los Catalanes, Northern Uruguay: genetic implications from fluid inclusions and stable isotopes. Mineralium Deposita , 2024; DOI: 10.1007/s00126-024-01310-2 ...

For more than 1,000 years, the dried root of the white peony has been used in ancient Chinese medicine. It’s traditionally used to treat various ailments, including mental health disorders ...

Joel Yuen-Zhou dedica seu tempo a resolver enigmas científicos e a desenvolver maneiras totalmente novas de conduzir reações químicas usando efeitos quânticos. O químico teórico da ...

The Keokuk Area Convention and Tourism Bureau is proud to present the 20th Annual Geode Fest, Sept. 27, 28 and 29. The festival is touted as “three days of geode hunting with experienced guides to ...