NO. 2 BIBLIOGRAPHY OF TIN HESS 231 



MINERALOGY (Continued) 



1630. . Notes on the occurrence of pseudomorphs of oxide of tin after 



some unknown mineral from Bolivia. 



Trans. Roy. Geol. Soc. Cornwall, Vol. 13, 1906, pt. 2, Penzance, pp. 150-152. 

 Notice of oassiterite crystals that are apparently pseumomorphs, possibly after 

 sulpho-stannites, as they are accompanied by what seem to be alteration products. 



1631. PENFIELD, S. L. On canfieldite, a new sulphostannate of silver from 



Bolivia. 



Amer. Journ. Sci., Vol. 47, 1894, New Haven, pp. 451-454. 



Gives description and analysis of a sulphostannate of silver, containing germanium. 

 Formula: 4Ag 2 S(Sn,Ge)S r 



1632. PHILLIPS, J. ARTHUR. On the structure and composition of certain 



pseudomorphic crystals having the form of orthoclase. 



Journ. Chem. Soc., Vol. 28, II, 1875, London, pp. 684-687. 



Abstracts: Jahr. Chem. fiir 1875, Vol. 28, 1877, Giessen, p. 1249; Ann. Mines, eer. 

 7, Vol. 13, 1878, Paris, p. 516. 

 Results of the examination of some cassiterite crystals from St. Agnes mine. 



1633. PHILLIPS, W. A description of the oxyde of tin, the production of Corn- 



wall; of the primitive crystal and its modifications, including an 

 attempt to ascertain with precision, the admeasurement of the angles, 

 by means of the reflecting goniometer of Dr. Wollaston: to which is 

 added, a series of crystalline forms and varieties. 



Trans. Geol. Soc. London, Vol. 2, 1814, London, pp. 336-376, figures. 

 Review Tasch. ges. Min., Vol. 12, II, 1818, Frankfurt-am-Main, pp. 543-544. 

 The title is a fair digest of the article, which is a classic upon the subject. 



1634. PHILLIPS, WILLIAM. On the measurements, by the reflecting goniometer, 



of certain primitive crystals; with observations on the methods of 

 obtaining them by mechanical division along the natural joints of 

 crystals. 



Trans. Geol. Soc. London, Vol. 4, 1817, London, pp. 241-263; oxide of tin, pp. 

 244-246; about 500 words. 



Gives method of cleaving cassiterite crystals by first heating them, so that faces 

 parallel to all the sides of the common prism, its diagonals and faces of the primi- 

 tive octohedron may be measured. 



1635. PIRSSON, L. V. Mineralogical notes. 



Amer. Journ. Sci., ser. 3, Vol. 42, 1891, New Haven, p. 407. 



Description of crystals of hematite inclosing cassiterite, from Mina del Diablo, 

 Durango, Mexico. 



1636. PRIOR, G. T. On teallite, a new sulphostannite of lead from Bolivia; 



and its relations to franckeite and cylindrite. 



Min. Mag. Journ. Min. Soc., Vol. 14, 1907, London, pp. 21-27. 



" The new mineral occurs in thin graphite-like folia embedded in glistening kaolin, 

 upon a dark grey matrix impregnated with iron-pyrites; on one specimen it is asso- 

 ciated with a little wurtzite in thin plates, and on the other with a little galena." 

 It is much like the other two minerals in physical character, but differs chemically, 

 containing no antimony, only lead, tin and sulphur. Composition PbSnS 2 . 



RAIMONDI, A. See No. 870. 



Describes plumbostannite, a sulphide of lead, tin and antimony. 



