Back Issues: May/June 2003


California tourmaline, p.156			Michigan datolite, p.170		Artist Bell-Hanson, p. 190		Cumberland habit, p. 196

ABOUT THE COVER: Tourmaline on quartz from the Cryo-Genie mine near Warner Springs, San Diego County, California; specimen is 40 cm high. Natural History Museum of Los Angeles County specimen, Harold and Erica Van Pelt photo. See related article on the Cryo-Genie mine beginning in page 156.

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Rocks & Minerals (78:03)
May/June 2003

FEATURES

156 Tourmaline Discovery at the Cryo-Genie Mine, San Diego County, California
Anthony R. Kampf, Ken Gochenour, Jim Clanin

170 The Occurrence of Porcelaneous Datolite in Michigan's Lake Superior Copper District—Part 1: Nothern Keweenaw County and Isle Royale National Park
Tom Rosemeyer

190 Former Copper Country Stained Glass Artist Karen S. Bell-Hanson (b. 1958)
Susan Robinson

191 Connoisseur's Choice: Brookite, Dodo Mine, Subpolar Urals, Russia
Robert B. Cook

196 Let's Get It Right: The Cumberland Habit
John S. White

201 A Word to the Wise: Pegmatite
John Rakovan

202 Media Reviews
Robert B. Cook, John J. Ernissee, Arthur E. Smith

DEPARTMENTS

149 Chips from the Quarry

151 Letters to the Editor

153 Geo-Currents: GIS Data Made Available
Jane M. Matty

197 Internet Directory for the Earth Sciences

204 Museum Notes & Announcements

207 Coming Events