Contents - Vol. 26, No. 4, April, 2010 The South Mountain Mining & Iron Co. Cumberland County, Pennsylvania Opinion: Are Hardcopy Magazines Becoming Irrelevant? Book Review: Crystals & Gold By R.T. Cross Book Review: The Pyroxene Group by Robert J. Lauf Even Mining Companies Need Desks... New Mineral Names Mining to Resume in the Illinois - Kentucky Fluorspar District Rebuttal: Telling Lies for Gaia Note from the Publisher Another Comment Announcement Caveat Emptor: Spessartine Fakes Ads Upcoming Events