6. KIOWA COUNTY, KANSAS. A pallasite found in Brenham Township. Analyzed by L. G. Eakins, record No. 1188, and described in Bull. 78, p. 94. A. The nickel-iron, Sp. gr. 7.93, 23.4°. B. The pure olivine. Sp. gr. 3.376, 23.2°. C. Dark outer zone of olivine, containing troilite. 7. TRAVIS COUNTY, TEXAS. Analyzed by L. G. Eakins, record No. 1097, and described in Bull. 78, p. 91. Sp. gr. 3.543, 20°. According to Cross, the stony portion contains olivine and enstatite, with a small amount of a colorless mineral, which is probably feldspar. Chromite is also present. C. Silicates soluble in hydrochloric acid, calculated to 100 per cent. D. Insoluble silicates, calculated to 100 per cent. 8. BLUFF, FAYETTE COUNTY, TEXAS. Analyzed by J. E. Whitfield, record No. 824, and described in Bull. 60, p. 107. Sp. gr. 3.510. Examined microscopically by G. P. Merrill, who reports, in addition to nickel-iron and pyrrhotite, olivine, enstatite, and what appears to be augite or an allied pyroxene. See Amer. Journ. Sci., 3d series, vol. 36, August, 1888. A. Total analysis. B. Nickel-iron (5.67 per cent of total). C. Part soluble in hydrochloric acid, calculated to 100 per cent (60.62 per cent of total). D. Insoluble part, calculated to 100 per cent (33.3 per cent of total). This meteorite also contained a dark vein of sp. gr. 3.585, which carried 2.30 per cent of metallic iron. Analyses, made on less than 0.4 gramme of material, gave as follows, recalculated to 100 per cent: E. Soluble in hydrochloric acid, metal deducted. 9. SAN BERNARDINO COUNTY, CALIFORNIA. Found in the San Emigdio Mountains. Analyzed by J. E. Whitfield, record Nos. 804 and 936, and described in Bull. 60, p. 114. In fragments, badly altered. The soluble part was probably olivine and pyrrhotite, with secondary iron oxide. The insoluble part was enstatite, essentially. 10. BEAVER CREEK, BRITISH COLUMBIA. Fell May 26, 1893, near Beaver Creek, West Kootenai district. Described by Howell, Hillebrand, and Merrill in Amer. Journ. Sci., 3d series, vol. 47, p. 430. According to Merrill, the silicates visible are olivine, enstatite, probably a little plagioclase, and some glassy base. Analyses by W. F. Hillebrand, record No. 1444. A. Nickel-iron. B. Nonmagnetic, stony portion. C. Portion of B soluble in hydrochloric acid, calculated to 100 per cent. D. Insoluble portion, calculated to 100 per cent. From C and D troilite and chromite are excluded. The chromite forms about 0.75 per cent of the stony matter. |