Tuesday at 7:30pm



 The presentation is free and open to the public, and refreshments will be served. We request that children be accompanied by a parent, grandparent, or guardian.

​​​​Program July 9th, 2019


              Open to the public

Eastern Greenwich Civic Center,

90 Harding Road, Old Greenwich, CT 06870

    ​                        (same location as our fall show)

​     Mark Kucera is a member of many mineral clubs, including the Stamford Mineralogical Society. This month's topic will be on the Sulfides. Many metal ores are sulfides, including Argentite (silver sulfide), Cinnabar (mercury sulfide), Galena (lead sulfide), penlandite (nickel sulfide), pyrite (iron disufide) and chalcopyrite (iron-copper sulfide)

     Sulfides are used in many applications from infra-red sensors, anti dandruff shampoos, lubricants, artists pigments and fungicides.