Download or read book Mineralogy of Pennsylvania 1922-1965 written by Arthur Montgomery and published by Academy of Natural Sciences. This book was released on 2008 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1922 Samuel Gordon¿s ¿The Mineralogy of PA¿ was pub. by the Acad. of Natural Sci. of Phila., & was later reprinted twice. The editing of the material incorp. in this updated vol. utilizes & brings up-to-date the more significant data bearing on mineral discoveries, occurrences & origin, & covers the period of pub. of a one-page column, ¿PA Minerals,¿ in the Keystone Newsletter, monthly journal of the Mineralogical Soc. of PA from 1962-1965. Contents: (1) Aims, & Contents; (2) Revised List of PA Minerals; (3) Descriptive Mineralogy of Newly Recorded Species; (4) New Data on Earlier Recorded Minerals: Minerals of Historical Interest; Minerals of Geochem. Interest; & Zeolites & Related Secondary Minerals; & (5) Index of PA Minerals & Mineral Localities. Illus.