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

A LIST OF NEW ~INERAL NAMES. 887
Lut~cine. A. Miehel-L6vy and Munier-Chalmas, Bull. Soc. frang.
Min. 1899,, XV, 175. The elements which build up the groupings called
lutdcite.
l~Ianganberzeliite. L. g. IgelsLr6m, Zeils. Kryst. Min. 1894,
XXIII, 593. The same as pyrrhoarsenite.
Manganglauconite.
See marsjatskite.
Maujak. (R. P. R0thwell's Mi, er~d Dtdustry for 1897, New York,
1898, u 54; 1899, u 79,. Trans. Fed. It~st. MiJ~iJ~g Eng. 1898,
XIV, 539 ; XVI, 33, 388). A lecal name for asphaltum from Barbados,
West Indies.
Marsjatskite. E. yon Fedorow and W. Nikitin, Anm G~ol. Miu.
Rt~ssie, 1899, III, 90, 109.. Glauconite containing much manganese
(Ma~gat~ghluko~dl); it forms the bulk of a Tertiary sandstnne in the
Marsjat forest, Urals.
Mayberyite. S.F. Peckham, Jo~lr~. Fra~klin Inst. 1895, CXL,
889,. b~amed after C. F. Mabery (not Maybery). The names mayberyite,
ve~turaile and wctrrenite are proposed in connection with a suggested new
classification of petroleum, bitumen, etc.
:YIelite. F. Zambonini, Zeits. Kryst. 31in. 1899, XXXII, 161.
Hydrated silicate of Al~Fe. Massive. Thuringia.
lVIetaheulandite. F. Rinne, Ne~tes Jahrb. Min. 1899, I, 18, 80.
Heulandite from which palt of the water has been artificially expelled,
causing a variation in the optical characters (Abstr. Min. M~g. XII, 819,).
l~Iiersite. L, J. Spencer, Nature, 1898, LY{I, 574. A cubictetrahedral
modification of silver iodide containing some copper iodide;
isomorphous with marshite. Broken Hill, bTew South Wales.
Mitchellite. J. H. Pratt, Amer. J. Sci. 1899, VII, 9,86. A
variety of chromite containing much MgO.AI~Q. l~orth Carolina. The
same as magnochromite.
Moldovite. C. Istrati, Bult. Soe. Sei. Bucarest, 1897, YI, 91. A
~ariety of ozocerite from Moldova (Moldavia).
Moronite. S. Calderon and iVI. Paul, Anal. Soc. Espa~. Hist. Nat.
1886, XV, 477. S. Calderon, ibid. 1894, XXIII, 21. A mixed siliceous
and calcareous deposit formed of radiolaria, diatoms, foraminifera, &r
Moron, Spain.