1895.] Mineralogy. 37 
eneral Notes. 
MINERALOGY. 
Identity of Rhabdite and Schreibersite.—The fine needles of 
phosphide of iron and nickel which in many meteorites accompany or 
take the place of the larger crystals or lenses of schreibersite, go under 
the name of rhabdite. Whether rhabdite is identical with schreiber- 
site has long been in question. After carefully separating the material 
from the matrix, Cohen? has made analyses of rhabdite from five local- 
ities with the following results : 
Fe Ni Co r 
1. Seeläsgen, Prussia 49.76 36.17 0.46 13.61 
2. Lime Creek, Ala. 51.10 32.99 0.42 15.49 
3. Bolson de Mapimi, Mexico. . 52.54 81.71 0.72 15.03 
4. Sancha Estate, Cape Colony. 55.30 28.78 0.60 15.382 
5. Hex River Mts., Cape Colony. 
a) needles 56.71 27.36 O47 15.46 
b) plates 62.45 21.71 0.85 : 
These analyses show the formula of rhabdite to be (Fe Ni Co), P or 
identical with that of schreibersite. Kamazite is found to be like 
taenite, an alloy with narrow limits for the variation of cobalt and 
nickel. Wiilfing’ has published a handy list of the meteorites in. the 
world’s collections. 
English’s New Catalogue of Minerals.‘—The average trade 
catalogue of minerals is unsatisfactory because it fails to supply desired 
information concerning crystallography, occurrence, locality, etc. The 
recent catalogues of English and Company have shown a great 
advance over this type of catalogue, in, that beside the needed informa- 
tion concerning the locality, there.has been added, in the case of recently 
described occurrences, a reference to the original description. Another 
valuable feature is the insertion of miniature cuts indicating the devel- 
1Edited by Dr. Wm. H. Hobbs, University of Wisconsin, Madison, Wis. 
2 Ann. k. k. naturhist. Hofmuseums, ix; Heft 1, pp. 97-118, 1894. 
3 Jahresheft d. Verein f. vaterl. Natyrkunde i. Wurtemberg, Jahrg. 1894, pp. 
pe of Minerals, Geo. L. English & Co., 16th ed., pp. 124, New York, 
June, 1 
