/ 



\ 



Fourth Siipplement to Danas Mbiej^alogy. Ill 



A. Gaudin: Artificial formation of Sapphires. L'liistitut, K"o. 1212, 



J. W. Mallet: Oxyd of zinc, a furnace product at an iron-furnace in Benton Co. 

 Alabama. Am. J. Sci., xxiii, 184. 



3. Descriptions of Species. 



^scHYNrrE [p. 36*7, and Suppl. II]. — Analysis by Hermann (J. f.pr. Chem., Ixviii, 



9*7):' ^b 21-69, Cb ITSl, Ti 25*90, €e 22-20, Ce 5-12, La 6-22, y 1-28, te 5-45, ign. 

 1-20— 100*57. 



► Allaxtte [p. 208, and I, II, III]. — The orthite occurring in pyenite near "Weinhcim, 



has been analyzed by F. Stifft (Leonh. u, Bronn, 1856, 395), with the following 



\ ' Wi 51 i'e Ce, Ea Mn Y Ca IVtg 



1. 32-79 14-67 14-71 22-31 tr, 2-42 963 120 



2. 35-U8 14-70 15-81 18-91 tr. 147 9-45 ]-19 



^\a 



£: 



fi 





0-34 



0-41 



267 = 



=101-20 



34 



0-40 



2-67= 



=100 02 



Oxygen ratio for R, fi, Si, in 1, 1004 : 7*05 : 17-49 ; in 2, 9-63 : 7*07 : 18-71. [In 

 each, the oxygen of the silica equals quite nearly that of all the base?, coming under 

 the general garnet formula (li^, fi)Si, characteristic of allanite, epidote, garnet, etc. 

 — p.] Color pitch-black, brownish- black; streak greeuish-gray. 6.=3'44 — 3*47. 

 BB. fuses with intumescence to a brownish-black mass. 



Allophane fp. 336, and I, II].— Occur? in the fissures of the chalk near "Woolwich, 

 England. J. Morris, Phil Mag. [4], xiii, 76. See farther Addenda to this Supplement. 



Analcime [p. 318].— Crystals from trachyte in the Kaisorstuhl, aflforded Dr. Welt- 

 zien (Ann. CL Pharm., xcix, 287): 



Si 'M 3Pe ]{rg Ca J?fa £ fi j? 



54-02 22-54 1*35 0*57 2-91 1014 0-71 893 irac^ =10117 

 giving the usual formula. 



ANNIVITE, Brauns. — A mineral like tetrahedrite in external and blowpipe chaf- 

 acter, and probably, according to Kenngott, an impure variety. It occurs mixed 

 with cbalcopyrite m the Annivier valley, and near tetrahedrite. Analysis gave 

 Brauns (Mitth. nat. Ges. Bern, 1854, in Kenngott, Miu. Forsch. for 1855): 



S Sb As Ei Cu Fe Zn Quartz 



23-755 8-8Q0 10'962 4*943 35-566 3*850 2*006 9400 = 100'2S3 



Apatite [p. 396, and I, II, III]. — Apatite occurs in the Jura limestone near Am- 



berg, in noduhu' and stalactitic masses, with a columnar texture and a yellowish- 

 white color. It contains a trace of iodine. — W. Mayer in Ann. d. Ch. u. Pharm., ci, 281. 

 Coprolites. — Composition of Coprolites in the Rothliegenden (Permian) of north 

 Bohemia, occurring in a bituminous slate, at Oberlangenau near Starkenbach, accord- 

 ing to A. E. Reuss (Sitz. Wien, 1856. xviii, 124).— The unorganic part (2597 p. c.) 

 afforded Rochleder, in Reuss's laboratory, Phosphoric acid 24*43, carbonic acid 1329, 

 lime 49*70, magnesia 503, chlorid of sodium 7*55 = 100. 99 p. c. of the lime are 

 supposed to be united to the organic material^ 17*2, with the carbonic acid, and 22"5 

 with the phosphoric acid, the rest of this acid being united with the 5 p. c. of mnf- 

 nesia. It is remarkable that 74*03 per cent of the whole coprolite is organic. The 

 following table gives a comparative view of the composition of different coprolites. 



Phosphate of lime, 

 ? Carbonate of lime, 



Carbonate of magnesia, 

 Sesquioxyd of iron, 



Alumina, 



Silica, 



Ori:^nnic material. 



Water, 



Lime of organic part, 



Chlorid of sodium, 



1. 



2. 



3. 



4. 



5. 



6. 



Burdie- 



Fifo- 



Burdie- 



Burdle- 



Kosch- 



Obeilau- 



liouse. 



shire. 



house. 



bouse. 



titz. 



— ^m^ ^" ^ ^ ^"^ ^F^ 



fenau. 



9-58 



G3G0 



8508 



8331 



60-89 



16-25 



61'00 



24-25 



10-78 



1511 



32-22 



4-67 



13'57 



2*89 



— _ 





— -^_ 



2-75 





6-40 



trace 



■■^"■^■^ 



mmm^^mmm 



2-08 

 6-42 



— — 



1 4-13 



trace 



0-34 



0*29 



0-14 





3-38 



3-95 



1-47 



7-38 



74-03 



6-33 



3-33 







-* — -. 



— : 





"' ' 







■ 









1-44 











■■■- ■■■ 



1-96 



100*01 97-46 10015 lOO'lS 99*03 lOO'OO 



r 



