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American Mineralogist; February 2008; v. 93; no. 2-3; p. 283-299; DOI: 10.2138/am.2008.2571
© Mineralogical Society of America
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Figure 13


FIGURE 13. Back-scattered electron images of boralsilite in pegmatites from the Larsemann Hills, East Antarctica. (a) Boralsilite (type I) shows faint banding parallel to prism length. Sample 010602A. (b) Acicular boralsilite (type II) enclosed in quartz surrounded by feldspars. Sample 010205J4. (c) Aggregate of boralsilite prisms (type I) showing indistinctly lighter cores. Sample 121502E. (d) Aggregate of boralsilite prisms (type 2) showing patchy light areas. Sample 112906B. Abbreviations: B = boralsilite, K = K-feldspar, Pl = plagioclase, Q = quartz, T = tourmaline.





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JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2008 by Mineralogical Society of America