Rare Smithsonite - 85g Kelly Mine New Mexico

Description: This rare Smithsonite specimen, weighing 85g, was collected from the origional mine in New Mexico, USA, from an abandoned mine, using dynamite to blast through the unstable mineral seam. Collected by the seller inconjunction with students of the New Mexico Bureau of Mineral resources in 1977, before 'elf and safety existed. Smithsonite is a zinc carbonate (ZnCO3) that occurs in a variety of colors, the most famous of which is the 'Kelly Blue' variety. The Kelly Mine is one of several mines in the Magdalena mining district, located in Socorro County, New Mexico. Ore was discovered in the district in 1866, with early production of mainly lead and smaller amounts of silver. Copper became an important metal around 1900. Zinc carbonate ores (smithsonite) were recognized and expoited around 1903. Zinc was the most important metal mined from the district after that time. Complex sulfide ores became the mining staple of the district after 1908. Mining continued into the 1960s, but the Kelly headframe still stands today. The specified is quite dense due to the fact that it is a copper mineral. Some specumines are cut and polished for making rare jewelery. The natural shape and unpolished finish of this mineral make it a unique addition to any collection. Its Sub-Type is Smithsonite and its Type is Minerals/Crystals, falling under the categories of Mineral Specimens, Rocks, Fossils & Minerals, and Collectables. The origin of this specimen adds to its rarity and appeal. It is a natural occurrence from the United States, making it a remarkable piece of geological history. The Smithsonite Sub-Type and Minerals/Crystals Type make it a must-have for collectors of rare and unique specimens. Add this to your collection today!

Price: 40 GBP

Location: Bishop's Stortford

End Time: 2024-12-10T20:00:01.000Z

Shipping Cost: 29.12 GBP