| | Journal (article/letter/editorial) | online 27 February 2018 Tinzenite, a member of the axinite group with formula revised to Ca2Mn2+ 4 Al4[B2Si8O30](OH)2...Center, University of Maine, Orono, Maine 04469, USA *Corresponding author, e-mail: esgrew@maine.edu ...minerals had given the formula for the tinzenite, an axinite-group mineral, as Ca6Al4[B2Si8O30](OH)2. However...members of the axinite group, and significantly more Mn2þ than the Mn end-member, axinite-(Mn), Ca4Mn2Al4[B2Si8O30](OH)2...tinzenite and end-member axinite-(Mn). Distinguishing tinzenite from axinite-(Mn) requires an analysis, | | | Book (edition) | MINERALOGY OF ARIZONA,FOURTHEDITION V e a o_ of li rizo TI RAYMOND W. GRANT RONALD B. GIBBS...CALLAHAN THE UNIVERSITY OF ARIZONA PRESS TUCSON f -- The University of Arizona Press www.uapress.arizona...arizona.edu © 2022 by The Arizona Board of Regents All rights reserYed. Published 2022 ISBN-13: 978-0-8165-4358-8...Co\·er photo: \\ 7 ulfenite, Rowley Mine, Maricopa County, 4 cm high specimen, Evan and Melissa Jones Collection...Grant, Raymond \X'.,author. Title: Mineralogy of Arizona/ Raymond W. Grant [and 4 others] ; maps and illustrations |
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