| In the late Middle Ages massive amount of Baryt which phosphoresced when it was gently heated, were discovered in Italy. This stone was named after its place of discovery "Pietra fosforica di Bologna" (phosphorescent Bologna stone) and was of great interest to alchemists. Although the name baryte ha ... moreIn the late Middle Ages massive amount of Baryt which phosphoresced when it was gently heated, were discovered in Italy. This stone was named after its place of discovery "Pietra fosforica di Bologna" (phosphorescent Bologna stone) and was of great interest to alchemists. Although the name baryte has been assigned centuries later, it may be assumed that the Bologna stone is the first description in the literature. A portrait about this famous mineral by Peter Seroka. |
| The village and the mine with the same name "Rosia Montana" are located approximately 85 km north of the city of Deva. The mine complex extends over 21.2 square kilometers and is one of the largest gold deposits in Europe. The tunnel system in the underground is several hundred kilometers long and w ... moreThe village and the mine with the same name "Rosia Montana" are located approximately 85 km north of the city of Deva. The mine complex extends over 21.2 square kilometers and is one of the largest gold deposits in Europe. The tunnel system in the underground is several hundred kilometers long and was used until a few years ago. Already in Roman times the tunnels had a length of 145 km. |
| Dieser Artikel befasst sich mit den Eisenerzlagerstätten im Raum Adorf, die geologisch auch in Teile des Ostsauerlandes übergreifen. Hier wird ein Stück deutscher Bergbaugeschichte zusammengefasst, deren Bedeutung immer im Schatten der großen deutschen Lagerstätten stand. So bin ich bemüht die histo ... moreDieser Artikel befasst sich mit den Eisenerzlagerstätten im Raum Adorf, die geologisch auch in Teile des Ostsauerlandes übergreifen. Hier wird ein Stück deutscher Bergbaugeschichte zusammengefasst, deren Bedeutung immer im Schatten der großen deutschen Lagerstätten stand. So bin ich bemüht die historischen Zusammenhänge etwas näher zu beleuchten. Viele der hier aufgeführten Informationen zu Orten und Bergwerken sind bereits aus dem Bewusstsein der einheimischen Bevölkerung verschwunden. |
| The Mineralientage München 2025 – The Munich Show once again showcased a fascinating variety of minerals, fossils, and jewelry. Although visitor numbers appeared slightly lower than last year, the fair remained vibrant and diverse. Highlights included the collector displays and the special exhibitio ... moreThe Mineralientage München 2025 – The Munich Show once again showcased a fascinating variety of minerals, fossils, and jewelry. Although visitor numbers appeared slightly lower than last year, the fair remained vibrant and diverse. Highlights included the collector displays and the special exhibition on natural resources, while the fossil section was somewhat smaller. Some visitors expressed a wish for more seating areas, opportunities for exchange, and more eye-catching advertising, yet overall the event left a very positive impression and remains a must-visit for collectors and families alike. |