Note 117 — Chapter IV · The Microscopic and Optical Characters of Minerals. (continued 2)
Reading edition
Am. Jour. Sci., May, 1906. This method is specially useful in detecting presence of orthoclase, when plagioclase is the dominant feldspar.
Reading edition
Am. Jour. Sci., May, 1906. This method is specially useful in detecting presence of orthoclase, when plagioclase is the dominant feldspar.