 | | Journal (article/letter/editorial) | | NEW OCCURRENCE OF LUDWIGITE FROM POTRERO CHICO, NUEVO LEON, MEXICO. S. L. Hanson1, A. U. Falster2, and... ME 04217. Potrero Chico, a well-known rock-climbing area in Hidalgo, Nuevo Leon, Mexico, is host to...which contain numerous inclusions of lustrous hematite. Hematite also occurs within the gypsum as millimeter-sized...Geochimica et Cosmochimica Acta 56:725–38. Figure 1. Hematite twin on {012} from the N’Chwaning No. 2 mine,...Africa. The field of view is 7.5 mm across. RARE HEMATITE TWINS ON {012} FROM THE KALAHARI MANGANESE FIELD |  | | Report (issue) | | Sedimentary and Tectonic History of North-Central Mexico Edited by Claudio Bartolini Department of Geological...of Geological Sciences New Mexico State University Las Cruces, New Mexico 88003 United States SPECIAL...stratigraphy and paleogeographic evolution of northeast Mexico.1 R. K. Goldhammer and C. A. Johnson 2. Red beds...Huayacocotla anticlinorium, state of Hidalgo, east-central Mexico .59 H. Ochoa-Camarillo, B. E. Buitron-Sanchez...nomenclature for the Chihuahua trough, north-central Mexico: implications for lithocorrelations .69 R. Monreal |  | | Journal (article/letter/editorial) | | tain masses of hematite with small crystals of white apatite and epidote. In the hematite, two "iron roses"...chalcocite. T H R E E OCCURRENCES OF SPECULAR HEMATITE I N S T . L A W R E N C E C O U N T Y , N E W...New York, sheet of the 7.5' topographic series. Hematite occurs as lenticular splendent black crystals...up to 2 cm in diameter in cavities of granular hematite and as rosettes and balls of tabular crystals...habit up to several cm in length in cavities with hematite and quartz. Barite oc curs rarely as transparent |  | | Report (volume) | | controls, Carlsbad potash district, southeast New Mexico, in Third symposium on salt, V. l (J. L. Rau and... Preliminary reconnaissance for uranium in New Mexico, 1950 to 1958: Washington, D.C., U.S. Atomic Energy...The special significance of eucrites Stannem and Nuevo Laredo in lunar-meteorite comparative studies: Earth...Prieto, Mexico [Geothermal energy in El Salvador, Central America and in Cerro Prieto, Mexico (with Spanish...the western margin of the Nacimiento uplift, New Mexico [abs.]: Geol. Soc. America Abs. with Programs, |
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