COMPOSITION OF FERHERITE AND OTHER MEMBERS OF SERIES. 27 

 (lit wolframite series Continued. 



a Limonite 2.1 per cent. 



31. Wolframite from Zinn.wald, Germany. Weidinger, G., Analyse eines Wol- 

 framkrystalls aus den Gruben bei sa- hsisch Zinnwald an der bohmisch-sachsischen 

 Grenze: Zeitschr. Pharm., vol. 7, p. 73, 1855. 



32. Wolframite presumably from the property of the Mount Pima Mining Co. (Ltd.), 

 Tenasserim, Lower Burma. A published analysis by O. Burger furnished through 

 the courtesy of Radcliff & Co., Rangoon, Burma. 



33. Wolframite from Cornwall, England. The exact locality of origin is unknown. 

 Analysis by Edgar T. Wherry on specimen No. 80179 in the United States National 

 Museum. The analysis, which will appear in the Proceedings of the Museum, showed, 

 besides the items given: Fe 2 3 , 0.70, which was calculated to its equivalent of FeO 

 and added to that item. The wolframite is black and opaque and occurs in large 

 crystals with pyrite and chal copy rite. A section showed a later deposition of very 

 thin bands of scheelite and wolframite in cracks of the crystals, so that the CaO evi- 

 dently should be calculated into scheelite. 



34. Wolframite from Lost River, Alaska. R. C. Wells, of the U. S. Geol. Survey, 

 analyst. No Ta, Cb, Mo, or rare earths present. 



35. Wolframite from between Vilate and Chanteloube, France. Damour, A., Sur 

 le wolfram tantalifere du d^partement de la Haute- Vienne: Soc. geol. France Bull., 

 2d ser., vol. 5, p. 108, 1848. 



36. Wolframite from Takatori mine, Takatori Mountain, near Sudzukoya, Higashi- 

 Ibaraki County, State of Hitachi, Japan. The mine is 12 miles northwest of Mito and 

 14 miles northeast of Kasama. Analysis by S. Kateuno, personal communication, 

 Nov. 30, 1912. 



37. Wolframite from Black Metal claims, Hill City, S. Dak. R. C. Wells, of the 

 U. S. Geol. Survey, analyst. Any A1 2 3 present is included with the FeO. 



38. Wolframite from the southern end of the Sierra Cordoba, Argentina. Boden- 

 bender, G., Die Wolfram-Minen der Sierra von C6rdoba in der Argentinischen Re- 

 publik: Zeitschr. prakt. Geologic, Nov., 1894, p. 409. 



