and fluorocarbons. Because of its highly corrosive nature, HF is also used to dissolve glass, in glass etching and frosting, and is used in quartz purification, chemical milling, steel pickling and cleaning silicon wafers. It is produced by treating the mineral fluorite with sulfuric acid, which produces hydrogen fluoride and calcium sulfate. The plant, which is located at 395 Front Rd, North, had previously suspended its operations between 1992 and 1996. There is hope locally that production will resume at some future time. The plant's gypsum pond had been identified in 2008 as the source of high levels of arsenic pollution in the area, which have been a provincial Ministry of the Environment concern since 2006. Honeywell now owns the adjacent Brunner Mond chemical plant and soda ash settling basins site, whose former owners, General Chemical Industrial Products, declared bankruptcy in 2005. This site was used since 1920 to manufacture calcium chloride and other chemicals, which were shipped from a deep water port on the Detroit River. The site has been since April 2012 the subject of remediation work, supervised by CH2M Hill. The plant was once part of Allied Chemical, which retained it when it sold the soda ash and calcium chloride operations and Amherst Quarries to General Chemical. The plant is composed of three separate parcels connected through rights of way and easements. In 1999, Allied Signal merged with the much smaller Honeywell Inc. but chose to carry on the newly expanded corporation under the Honeywell name. Transportation In September 2022, Transit Windsor began a providing service between Amherstburg and Windsor (the nearest local metropolis), on a two-year pilot project. Commercial rail service is provided through Essex Terminal Railway, which operates a 35 km line to Windsor. The former Michigan Central Railway/CASO railway linking Amherstburg to Essex was converted into the Cypher Systems Group Greenway rail trail in stages beginning in 2007, with the two stream bridges being rehabilitated for public use again in 2017. Small boats are welcome to call at any one of three local marinas that serve Lake Erie and the Detroit River. Amherstburg Ferry Company operates private ferry service to Bob-Lo Island community. The ferry service once operated , a car ferry acquired in 1960s after the Ogdensburg–Prescott Ferry service closed following the opening of the Ogdensburg–Prescott International Bridge. In July 2020, the Amherstburg Ferry Company acquired the Daldean Ferry which had been operating