568 Scientific Intelligence. 



Biliuite. J. Sebor, [Sbornik Klubu pfirodovedeckeho, Prag, 

 No. II, 2, 1913], N. Jb. Mm., i, ret". 395, 1914.— Radiating 

 fibrous. Color white to yellow. H. = 2. G. = 1*875. Optically 

 resembles haldti'ichite. Comp. — Fe // F'" a (S0 4 ) 4 .24H,0 (an iron- 

 halotrichite). Found in a lignite mine at Schwaz, near Bilin, 

 Bohemia. 



Biitsckliite. R. Lang, N. Jb. Min., Beil.-Bd., xxxviii, 150, 

 1915. — Name proposed for the amorphous variety of calcium 

 carbonate. 



Chilla'gite.— A. T. Ullmann, J. Roy. Soc. N. S. W., xlvi, 186, 

 1912; Smith and Cotton, ibid., 207.— Tetragonal. c= 1-5291. 

 Apparently hemimorphic. In tabular crystals, l cm by 2 mm . In 

 cellular masses with crystals united or in nearly parallel growth. 

 Common forms, c(001), 2/(119), 1(118), p(il if. Color straw- to 

 citron-yellow, often brownish. Translucent. H. = 3 # 5. G. = 

 7*5. Brittle. Comp. — 3Pb W0 4 .PbMo0 4 . Occurs in a matrix of 

 iron ocher with cerussite and wulfenite at the Christmas Gift- 

 North mine at Chillagoe (whence name), Queensland. 



Diasporogelite. F. Tucan, Centralbl. Min., 768, 1913. — 

 More correct form of sporogelite. 



Doelterite. A. Lacroix, Nouvelles Arch. Mus., v, 334, 19 3 4. — 

 It is proposed to call the titanium acids, Ti0 2 .H 2 or TiO„.2H„0, 

 that are supposed to exist in the laterites of Guinea, by the name 

 of doelterites, in honor of Prof. C. Doelter. 



Dufreniberauiiite. E. T. Wherry, Proc. U. S. Nat. Mus., 

 xlvii, 509, 1914. — Name proposed for a hydrous, iron-manganese 

 phosphate from Hellertown, Pa., intermediate in composition 

 between dufrenite and beraunite. 



Elbaite. W. Vernadsky, Zs. Kr., liii 283, 1913.— In discuss- 

 ing the chemical composition of tourmaline, three molecules are 

 suggested which by isomorphous mixtures might account for the 

 variation in composition. These molecules are named elbaite, 

 belbaite and kcdbaite. The first occurs nearly pure in the pale 

 red tourmaline from Elba, the last in the varietv from De Kalb, 

 N. Y. 



Ferri-allophane. F. A. Nikolavskij, Bull. Ac. Sc. St. Pet., 

 viii, 147, 1914. — Name given to an iron-bearing allophane from 

 near Moscow, Russia. 



Furiiacite. A. Lacroix, Bull. Soc. Min., xxxviii, 198, 1915. — 

 .A basic chrom-arsenate of lead and copper. Found in small 

 amount on a single specimen of dioptase from Djoue, in French 

 Equatorial Africa. Occurs in a mass of small prismatic crystals 

 with acute angles and sharply-edged terminations. Apparently 

 monoclinic. Color, dark olive-green. Color of powder, canary- 

 yellow. High birefringence. Optically positive. Axial angle 

 large. Dispersion strong. Fuses at high temperature with 

 intumescence to a dark green glass with loss of water. Com- 

 pletely soluble in nitric acid. Gives reactions for arsenic, chro- 

 mium, copper and lead. Name derived from farnax in honor 

 of Lucien Fourneau, Governor of the French Congo. 



