abstracts: mineralogy 37 



MINERALOGY. — Natramblygonite, a new mineral. Waldemar T. 

 Schaller. American Journal of Science, 31: 48-50. 1911. 



Natramblygonite is a soda amblygonite, or a hydrofluophosphate of 

 alumina and soda with the soda in part replaced by lithia. This min- 

 eral was found near Canon City, Colorado, and its analysis gave the 

 results: P 2 5 , 44.35; A1 2 3 , 33.59; Li 2 0, 3.21; Na 2 0, 11.23; K 2 0, 0.14; 

 H 2 0, 4.78; F, 5.63; deduct O for F, 2.3?; total, 100.56. W. T. S. 



MINERALOGY. — Thaumasitefrom Beaver County, Utah. B. S. Butler 

 and W. T. Schaller. American Journal of Science, 31: 131-134. 

 1911. 



The rare mineral thaumasite was found in veins in altered limestone 

 in the Old Hickory mine, Rocky Range, Rocky district, Beaver Co., 

 Utah. Its properties agree with those of thaumasite from other local- 

 ities and the analysis gives the formula 3CaO.Si0 2 .S0 3 .C0 2 .15H 2 0. 



B. S. B. 



MINERALOGY. — Bismuth ochers from San Diego County, California. 

 Waldemar T. Schaller. Journal American Chemical Society, 

 33: 162-166. 1911. 



The bismuth ochers result from the oxidation of native bismuth and 

 analyses of three samples show them to be either bismite Bi(OH)3, 

 pucherite BiV0 4 or mixtures of these two. It is concluded, from a 

 study of the literature, that the anhydrous bismuth oxide, Bi 2 03, prob- 

 ably does not occur in nature. W. T. S. 



MINERALOGY. — Krystallographische Notizen iiber Albit, Phenakit und 

 Xeptunit. W. T. Schaller. Zeitschr. Kryst. Mineral., 43: 550- 

 558. 1911. 



Some rare crystal forms are described on albite from Marin Co., 

 California. Phenakite from New Hampshire and neptunite (new form) 

 from California are described crystallographically. All the known 

 forms, with coordinate angles and literature references, of phenakite 

 and neptunite are brought together in tables. W. T. S. 



GEOLOGY. — A geologic reconnaissance in southeastern Seward Penin- 

 sula and the Norton Bay-Nulato region, Alaska. Philip S. Smith 

 and Henry M. Eakin. Bulletin U. S. Geological Survey No. 449. 

 Pp. 141, with maps, sections, and views. 1911. 



The region described extends from the Yukon River near the mouth of 

 the Koyukuk westward to Council in Seward Peninsula. There are two 



