704 SCIENTIFIC RECORD FOR 1885. 



COLKJIANITE. CryBtallograpbic descriptiou, A.W.Jackson, Bull. Cal. Acad. Sc, No. 



2; Hiortdalil, Zs. Kr., x, 25; also Arzruni, ib., p. 272. 

 Description, crystallograpliic, vom Rath, and chemical, Bode wig, Zs. Kr., x, 179. 

 Essentially identical in composition with priceite and pandermite, Kenngott, 



Jahrb. Miu., 1885, i, 241. 

 COLUMBITE. Crystal from Craveggia, Italy, Zs. Kr., x, 85 ; Rend. Ace. Line, IV, i, 8. 

 CoxNELLiTE. Recently found in Cornwall, Semmons, Miu. Mag., vi, 160; Miers, ib., 



167; Trechmaun, ib., 171. 

 CORUNDOPHILITE. Analysis of related mineral from Albemarle Coonty, Va., M. 



Bird, Am. Ch. J., vii, 181. 

 Corundum. Optical behavior and micro-structure, A. von Lasaulx, Zs. Kr., x, 346; 



asteriated variety, Baret, Bull. Soc. Min., vii, 438. 

 COSAXITE. Ouray County, Colo., analysis, G. A. Koenig, Am. Phil. Soc. Phila., xxu, 



211 ; F. A. Genth, ib., Oct. 2. 

 Co\TELLiTE. Formation artificially, Doelter, Zs. Kr., xi, 34. 

 Crocydolite. Composition discussed, relation to arfvedsonite, Kenngott, Jahrb. 



Min., 1885, II, 163. 

 Cryolite. Etching experiments, Baumhauer, Zs. Kr., xi, 133. 

 Cuprite. Found near Philadelphia, H. C. Lewis, Proc. Acad. Nat. Sc. Philad., 120; 



occurrence in Arizona, G. F. Kunz, N. Y. Acad. Sc, p. 279, Oct. 5. 



Damourite. Stoneham, Me., analysis, F. W. Clarke, Am. J. Sc, xxix, ^79. 

 Datolite. Casarza, Liguria, crystals described, Liidecke, Zs. gesammt. Nat., LViii. 

 Crystals from the Hirschkopf near Manebach, Liidecke, Zs. Kr., x, 196. 

 Analysis, Molinari, Bull. Com. Geol. d'ltalia, vi, 180. 

 Variety botryolite, optical properties, Lacroix, Bull. Soc. Min., viii, 433. 

 Delvauxite. Pseudomorph after gypsnm, Vis6, Belgium, G. Cesi\ro, Ann. Soc. 



Geol. Belg., xii, 192. 

 Descloizite. New Mexico, cryst. and chem. examination, F. A. Genth and G. vom 



Rath, Zs. Kr., x, 464: Am. Phil. Soc Philad., April 17. 

 Destinezite. Analysis, and shown to be homceomorphous with gypsum, G. Ces^ro, 



Ann. Soc. Geol. Belg., xii, 173. 

 Diamond. Brazil, minerals of diamond washings, O. A. Derby, Am. J. Sc, xxix, 70. 

 Occurrence in South Africa described in detail, A. Moulle, Ann. Min., VIII, vii, 



193. 

 Composite crystals from South Africa, Jannettaz, Bull. Soc Min., viii, 42. 

 Observations on hardness of " bort," G. F. Kunz, Am. J. Sc, XXX, .81. 

 Diadelphite. Full description, Hj. Sjogren, Zs. Kr., x, 130. 

 Diopside. See Pyroxene. 

 Dreelite. Relation to barite, Lacroix, Bull. Soc, Miu., vui, 435. 



Enargite. From Butte, Montana, Semmons, Min. Mag., vi, 49, 124. 



Endlichite. An arsenio-vanadate of lead. New Mexico, F. A. Genth and G. vom 



Rath, Zs. Kr., X, 462; Am. Phil. Soc, Phil., April 17. 

 Enstatite. Twin crystals (bronzite) in rocks, Fr. Becke, Min. petr. Mitth., Vii, 93. 

 Epidote. Rowe, Mass., analysis, A.G.Dana, Am. J. Sc, xxix, 455. 



Pargas, Finland, analysis, F. J. Wiik, Finsk. Vet. Soc, xxvii; occurrence in 



Dauphiny, Groth, Ber. Ak. Miinchen, Nov. 7, p. 389. 

 Erythrite. Found near Philadelphia, H. C. Lewis, Proc. Acad. Nat. Sc Philad., 



1885, p. 120 ; occurrence in Nevada and California, W. P. Blake, Am. J. Sc, XXX, 



163. 



Fairfieldite. Found at Raben.stein, Bavaria (Leucomanganiie), Sandberger, Jahrb. 



Min., 1885, i, 185. 

 Fayaxite. Crystals described from the Yellowstone Park, also analysis, J. P. Id- 

 dings and S. L. Penfield, Am. J. pSc, xxx, 58. 

 Probable occurrence in Colorado, W. E. Hidden, Am. J. Sc, XXIX, 250. 



