Search Mineralpedia – A Mineral Photo Database and Identification Guide

Receives its name from the Baia Sprie mine in Maramures Co., Romania, which was formerly called the Felsobanya mine when the area was a part of Hungary. Felsobanyaite is an uncommon product of oxidized marcasite ore and can be found in additional localities in Australia, Austria, the Czech Republic, Poland, France, Hungary, Ukraine, Slovakia, Italy, England, Ireland, the United States, Bolivia, China, and Japan. Associated minerals include marcasite, stibnite, baryte, and quartz.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/felsobanyaite.pdf

Named after Dr. Walter Frederick Ferrier, a geologist and mining engineer formerly with the Canadian Geological Survey. Ferrierite is a name used for unanalyzed specimens that could be and of the Ferrierite-K, -Mg, or –Na species. Ferrierites have localities in Antarctica, Australia, New Zealand, Austria, Bulgaria, the Czech Republic, Germany, Hungary, Italy, Slovenia, Spain, Sweden, Canada, the United States, and Japan. Other localities for specific species are known.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/ferrierite-(Na).pdf