236 



SMITH— PARAGENESIS OF MINERALS. 



[October 5, 



XIII. Pseudodiabase, Mt. St. Helena, California; No. 21 Coast Range; 

 Melville, analyst; G. F. Becker, Mon. XIII., U. S. Geol. Survey, p. 98. A 

 little altered igneous rock, with fresh plagioclases, some uralite, zoisite? 

 (pale epidote?), and a little actinolite. 



XIV. Fourchite, Angel Island ; Ransome, analyst. Bull. Dcpt. Geol. Univ. 

 of California, Vol. I., p. 231. A diabase dyke, slightly altered, with some sec- 

 ondary glaucophane. 



XV. Garnet glaucophane schist. Pine Canyon, Mt. Diablo, California; 

 Melville, analyst; H. W. Turner, Bull. Geol. Soc. Amer., Vol. II. (1891), p. 413. 



Table of Analyses. 



XVI. Garnet glaucophane schist, Tupper Rock, near Brandon, Oregon; 

 Washington, analyst, Amer. Jour. Sci., IV. Sen, Vol. XI. (1901), p. S2>- 

 Abundant glaucophane, and garnets, with some epidote, zoisite, and white 

 mica. 



XVII. Epidote glaucophane schist, Roseburg, Oregon; Washington, an- 

 alyst, Amer. Jour. Sci., IV. Sen, Vol. XL (1901), p. 53. Abundant glauco- 

 phane, epidote, and muscovite, with a few quartz grains. 



XVIIL Omphacite eclogite. Coyote Creek, six miles north of San Martin, 

 California; C. B. Allen analyst; R. S. Holway, Jour. Geol, Vol. XIL, p. 356. 

 A massive rock composed of omphacite, garnet, white mica (muscovite), 

 actinolite, titanite, and rutile. 



XIX. Epidote glaucophane schist, North Berkeley, California; H. Rosen- 

 busch, Sitzungsberichte, K. Preuss. Akad. JViss., 1898, p. 716. A partial 

 analysis, with an estimate of the other components. 



XX. Albite, from glaucophane schist, San Pablo, California; W. C. Bias- 

 dale, analyst. Bull. Dept. Geol. Univ. of California, Vol. II., p. 343. 



XXI. Pargasite, from the pargasite eclogite, Arroyo Hondo, at the 

 northern end of Calaveras Valley, Santa Clara County, California; W. O. 

 Clark, analyst. 



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