Description: Mesolite & prehnite Prospect Park Quarry, Prospect Park, Passaic County, New Jersey, USA 15.5 x 9.9 cm A 6.7 cm mesolite sphere on prehnite, formerly in the U.S. National Museum, and pictured on p.178 of the May-June 1978 issue of the Mineralogical Record.

All pictures, text, design © Forum FMF 2006-2024