Elements of optical mineralogy: an introduction to microscopic petrography

ABSTRACT THE general arrangement of the third edition of Pt. 2 of Winchell's “Elements” remains broadly the same as in earlier editions. Advances in knowledge of the relations between

the optical properties and chemical composition of crystals, especially those affecting the amphibole group, have been incorporated in the text. Elements of Optical Mineralogy: an

Introduction to Microscopic Petrography. By Prof. Alexander N. Winchell. Third edition. Part 2: _Descriptions of Minerals, with Special Reference to their Optic and Microscopic Characters._

Pp. xviii + 459. (New York: John Wiley and Sons, Inc.; London: Chapman and Hall, Ltd., 1933.) 37_s_. 6_d_. net. Access through your institution Buy or subscribe This is a preview of

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CITE THIS ARTICLE _Elements of Optical Mineralogy: an Introduction to Microscopic Petrography_ . _Nature_ 133, 123 (1934). https://doi.org/10.1038/133123b0 Download citation * Issue Date: 27

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