|
Libethenite
Libethenite is a rare copper phosphate hydroxide mineral. It forms striking, dark green orthorhombic crystals. It was discovered in 1823 in Ľubietová, Slovakia and is named after the German name of that locality (''Libethen''). Libethenite has also been found in the Miguel Vacas Mine, Conceição, Vila Viçosa, Évora District, Portugal, and in Tier des Carrières, Cahai, Vielsaim, Stavelot Massif, Luxembourg Province, Belgium. Appearance Libethenite almost always takes the form of dark-green orthorhombic crystals. It is often found in clusters with other libethenite crystals. Formation Libethenite is found in the oxidized zone of copper ore deposits. It is most often formed from the weathering of phosphate rocks such as apatite, monazite, and xenotime Xenotime is a rare-earth phosphate mineral, the major component of which is yttrium orthophosphate ( Y P O4). It forms a solid solution series with chernovite-(Y) ( Y As O4) and therefore may contain trace impu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ľubietová
Ľubietová (german: Libethen) is a village in central Slovakia. Originally an ancient mining town, it is known for precious minerals. Geography Ľubietová is part of the Banská Bystrica District in the Banská Bystrica Region. It is situated 25 km east from the town of Banská Bystrica. It lies at an altitude of 491 metres and covers an area of 61 km². The geographic center of Slovakia, the Hrb mountain, is located near the village. History Thanks to abundant deposits of copper and less rich deposits of iron ore, Ľubietová became soon an important center of medieval mining industry. It was granted the status of a royal town in 1379 by Louis the Great and German miners settled here. As one of the most important centers of Protestant Reformation in the country, the town created the Protestant "League of Seven Mining Towns" together with Banská Belá, Banská Bystrica, Banská Štiavnica, Kremnica Kremnica (; german: Kremnitz, hu, Körmöcbánya) is a to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
