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Discovery of New Mineral Species
The discovery of a mineral species new to science from New York State has recently been announced by the International Mineral Association (IMA). The species was named parvo-mangano-edenite and it belongs to the amphibole group of minerals. It was originally discovered at a talc mine in Fowler, St. Lawrence County, New York and had been the object of a long study by Dr. Alan Benimoff of the College of Staten Island and an international group of his colleagues.
This marks the second time within a year that the IMA has accepted a new amphibole species discovered in New York State.
Dr. Marian Lupulescu, the acting Curator of Mineralogy at the New York State Museum
recently discovered another new amphibole, named fluoropargasite. The discovery was made while doing research on the
Museumís collections. The specimen was from Edenville in Orange County and was collected over 100 years ago.
The specimen sat undiscovered in the museum until it caught the attention of a team of researchers associated with the
State Museumís Center for Mineralogy and led by Dr. Lupulescu.
Information on Amphiboles
The amphibole group constitutes the most chemically complex mineral group in nature and their component atoms have a distinctive arrangement known as a double silicate chain. The more than 75 amphibole species are divided into four sub-groups based on their main chemical element.
Amphiboles are essential minerals of igneous and metamorphic rocks and are wide spread in New York State with 22 species known to be present. The Upper Marble Formation in St. Lawrence County and the Franklin Marble of Orange County are two locations where beautiful amphibole crystals, some of gem quality, occur. The world’s finest “hexagonite” tremolite and chrome tremolite are found in St. Lawrence County. Edenite, a calcic amphibole, was first discovered and described as a new mineral species in Edenville, Orange County.
The New York State Museum possesses a world-class collection of amphiboles, many of which are now on display.
Our amphibole collection is currently the subject of ongoing research by the Museum’s Center for Mineralogy.