878 A List of New Mineral Names. By L. J. SPENCER, M.A., F.G.S. ...

A LIST oF NEW MINERAL NAMEs.
8i
Cementite. F. Osmond [Bull. See. Eneour. [ndust. 1)t~ris, 1895,
X, 4801 Nature, 1895, LII, 367; Zeits. Kryst. Min. 1896, XXVII,
538. A carbide of iron occurring in steel. Probably FesC, and possibly
identical with eohenite (Groth, Tab. Uebers. Min. 4th Ed. 1898, p. 16).
To various other microscopic constituents of steel have been given the
names, o~lstenite, ferrite, martensite, perlite (pearlyte), sorbite and troostite.
Cha]oolamprite. G. Flink, Medd. om GrSnl~,nd, 1900, XXIV,
160. A member of the pyrochlore group occurring as small regular octahedra
with a metallic coppery lustre on the surface. R"Nb.~OGF~-ff R"Si08;
(R=Ca,Zr,Na,Ce, etc.). S. Greenland. Compare endeiolite below.
Chlorarsenian. P. Groth, Tab. Uebers. Mira 4th Ed. 1898, p.
171. The same as chloroarsenian.
Churchillite. A. Dufr~noy, ~/l,'n. 2nd Ed. 1856, III, 9~80. The
same as mendipite. From Churchill, Mendip Hills.
Clinohedrite. (1). A. It. Chester, Dictionary of the Names of
Minerals, 1896. Breithaupt's Clino~drit (=tetrahedrite).
(9). S.L. Penfield and H: W. Foote, .4met. J. ScL 1898, V, 989;
Zeits. Kryst. Min. 1899, XXX, 587 (Kli~w~drit) ; Abstr..Min. Mug.
XIl, 133. Monoclinic, domatic class. Zn(OH)Ca(OH)Si08. Franklin
Furnace, New Jersey.
Conohito. Agnes Kelly, Nature, 1900, LXII, 239; Min. Mug.
1900, XII, 363; Sitz-Ber. Akad. 3/li~nchen, 1900, 187. A form of
calcium carbonate; optically uniaxial and negative, but with higher
refractive indices than calcite, and no cleavage or twinning. Occurs as
various animal secretions (molluscs, &c.), the fur of kettles, and in the
hot springs of Carlsbad, Bohemia.
Cordierite-pinite. H. GembSck, Zeits. Kryst. Min. 1898, XXIX,
305 ; 1899, XXXI, 248. Pinite when derived from cordierite.
Cordylito. G. Flink, Medd. om GrSnland, 1900, XXIV, 42. Waxyellow,
club-shaped hexagonal crystals, isomorphous with parisite.
(CeF)~Ba(C08)~. Also called barium-parisite. S. Greenland.
Courtzilite. (17th Ann. l~ept. U.S. Geol. Survey, 1895-6, Part III,
752). A kind of asphaltum.
Cubeite. Dana's Appendix, 1899. See Kubeit.
Cubosilicite. L. Bombicci, Mere. Aecad. Sei. Bolog~a, 1899 Iv.i,
VIII, 67. The smalt-blue cubes from Tresztya, Transylvania, usually
supposed to be pseudomorphs of chalcedony after fluor, are considered to
be a definite form of pseudo-cubic silica related to melanophlogite and
cri~tobalite. [Compare guanabaquite.j
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