. Annual report of the regents of the university on the condition of the State Cabinet of Natural History, with catalogues of the same. Science. 149 CACOXENITE. (Mineralogy of New-York, page 402.) This mineral is liable to decomposition, even in the closed drawers of a cabinet. My specimens from the Sterling iron mine in Jefferson county, at the end of 2 or 3 years entirely lost their silky lustre, and were converted into a dull yellowish powder. BABINGTONITE. (Mineralogy of New-York, page 407.) The composition of this mineral as determined by Dr. E. D. Thom- son is as follows: silica 47*46; p
. Annual report of the regents of the university on the condition of the State Cabinet of Natural History, with catalogues of the same. Science. 149 CACOXENITE. (Mineralogy of New-York, page 402.) This mineral is liable to decomposition, even in the closed drawers of a cabinet. My specimens from the Sterling iron mine in Jefferson county, at the end of 2 or 3 years entirely lost their silky lustre, and were converted into a dull yellowish powder. BABINGTONITE. (Mineralogy of New-York, page 407.) The composition of this mineral as determined by Dr. E. D. Thom- son is as follows: silica 47*46; protoxide of iron 16*81; protoxide of manganese 10*16; alumina 6*48; lime 14*74; magnesia 2*21; wa- ter 1*24. This analysis approaches one by Bonsdorff of a black horn- blende from Nordmark and Pargas, the magnesia being replaced by manganese in Babingtonite. Phil. Mag. fy Ann,, xxvii., 123. ZINC BLENDE. (Mineralogy of New-York, page 408.) The occurrence of this species in the calciferous sandrock, one or two miles N. E. of Glen's Falls, in Warren county, is mentioned by Dr. Emmons. Rep. on Geol., 2d Dist., p. 180. GALENA. (Mineralogy of New-York, page 412.) Various crystalline forms of galena occurring at the Nash vein in St. Lawrence county, are noticed by Dr. Emmons. Rep., on Geol, 2d Dist., p. 356. For some remarks on the singular crystals of this mineral found at Rossie, St. Lawrence county, by Mr. J. E. Teschemacher, see Phil Mag. fy Ann., xxv., p. The crystals of galena from Eossie are sometimes very singularly constituted. Alger introduces a figure representing a crystal of the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original New York State Museum. Albany, Regents of the University
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