Băiţa Bihor (Romania) is located in the Bihor Mountains. Precious metals, as well as some copper and lead ore, were mined here since the Middle Ages, and uranium ore in the 1950s and ‘60s. There is currently a molybdenum mine nearby. From the contact metamorphic and hydrothermal ores formed on the border of Triassic limestone and granodiorite, more than a hundred types of minerals are known to date, several of which were discovered here for the first time in the world. In our exhibition, we present nearly forty of these minerals, such as some famous borates (szaibélyite, kotoite, ludwigite), calcium silicate (wollastonite, grossular), ores of zinc, copper and molybdenum (sphalerite, chalcopyrite, chalcocite, bornite. tenorite, molybdenite), some minerals from uranium ores (uraninite, metatorbernite, uranophane), etc.
In the picture: White wollastonite and green grossular, Băiţa Bihor, Romania. Size: 15 cm. Photo by Géza Kulcsár