Hostname: page-component-78c5997874-m6dg7 Total loading time: 0 Render date: 2024-11-19T04:23:38.255Z Has data issue: false hasContentIssue false

The Siena meteorite: Mineralogy and Chemistry

Published online by Cambridge University Press:  05 July 2018

B. Baldanza
Affiliation:
Istituto di Mineralogia, Facoltà di Scienze, Università di Perugia, Italy
G. R. Levi-Donati
Affiliation:
Istituto di Mineralogia, Facoltà di Scienze, Università di Perugia, Italy
H. B. Wiik
Affiliation:
Geologinen Tutkimuslaitos Otaniemi, Finland

Summary

The principal data are collected about the fall and the distribution of the fragments of the Siena, Italy, meteorite (11·6°E., 43·1°N.). A complete individual, weighing 110·55 g, is described in some detail. Crust morphology, mineralogical composition, and structure were studied. Optical data were established by microscopical analysis and both thin and polished sections were observed. Compared with available electron-probe analysis they are found in good agreement. The chemical analysis is Fe 12·93, Ni 1·39, Co 0·09, FeS 5·46, SiO2 37·10, TiO2 0·14, Al2O3, 3·91 FeO 11·46, MnO 0·35, MgO 23·81, CaO 1·63, Na2O 0·90, K2O 0·16, P2O5 0·44, H2O+ 0·10, H2O 0·00, Cr2O3 0·56, total 100·43. Siena is an ordinary chondrite, with relatively ambiguous characteristics and evident features of recrystallization and metamorphism.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1969

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Baldanza, (B.), 1965. Min. Mag. 35, 214-32.Google Scholar
Brezina, (A.), 1895. Ann. Naturhist. Hofmus. Wien, 10, 231-70.Google Scholar
Capellini, (G.), 1915. Mere. R. Acc. Sc. Bologna, 2, 123-38.Google Scholar
Dodd, (R. T.) Jr., Van Schmus, (W. R.), and Koffman, (D. M.), 1967. Geochimica Acta, 31, 921-51.10.1016/0016-7037(67)90071-3CrossRefGoogle Scholar
Fredriksson, (K.), Decarli, (P. S.), and Aaramae, (A.), 1962. Space Sci. 111 (COSPAR), North Holland Publishing Co. Google Scholar
Fredriksson, (K.) and Keil, (K.), 1963. Geochimica Acta, 27, 717-39.10.1016/0016-7037(63)90038-3CrossRefGoogle Scholar
Hahn, (O.), 1880. Die Meteorite (Chondrite) und ihre Organismen, Tübingen.Google Scholar
Hamilton, (W.), 1795. Phil. Trans. Roy. Soc. London, 85, 103-5.Google Scholar
Hamilton, (W.), 1796. Biblio. Brit. 1, 404.Google Scholar
Hey, (M. H.), 1966. Catalogue of Meteorites. British Museum (Natural History), London.Google Scholar
Howard, (E.), 1803. Ann. Phys. (Gilbert) 13, 291-327.10.1002/andp.18030130305CrossRefGoogle Scholar
John, (J. F.), 1821. Ann. Chim. Phys. 18, 198-207.Google Scholar
Keil, (K.), 1962. Jour. Geophys. Res. 67, 4055-61.CrossRefGoogle Scholar
Keil, (K.) et al., 1964 . Amer. Mus. Novitates, no. 2173, 1-28.Google Scholar
Keil, (K.) and Fredriksson, (K.), 1964. Jour. Geophys. Res. 69, 3487-515.10.1029/JZ069i016p03487CrossRefGoogle Scholar
Klafroth, (M. H.), 1803. Ann. Phys. 13, 337-42.10.1002/andp.18030130307CrossRefGoogle Scholar
Krinov, (E. L.), 1960. Principles of Meteoritics. Pergamon, Oxford.Google Scholar
Kuno, (H.), 1954. Amer. Min. 39, 30-46.Google Scholar
Mason, (B.), 1963. Geochimica Acta, 27, 1011-23.10.1016/0016-7037(63)90062-0CrossRefGoogle Scholar
Mason, (B.), 1965. Science, 148, 943.10.1126/science.148.3672.943CrossRefGoogle Scholar
Mazor, (E.) and Anders, (E.), 1967. Geochimica Acta, 31, 1441-56.10.1016/0016-7037(67)90020-8CrossRefGoogle Scholar
Merrill, (G. P.), 1921. Bull. Geol. Soc. Amer. 32, 395-414 .10.1130/GSAB-32-395CrossRefGoogle Scholar
Prior, (G. T.), 1920. Min. Mag. 19, 51-63.Google Scholar
Ramdohr, (P.), 1967. Geochimica Acta, 31, 1961-7.10.1016/0016-7037(67)90135-4CrossRefGoogle Scholar
Reichenbach, (C. v.), 1860. Ann. Phys. 111, 353-86.Google Scholar
Ringwood, (A. E.), 1961. Geochimica Acta, 24, 159-97.10.1016/0016-7037(61)90016-3CrossRefGoogle Scholar
Rose, (G.), 1862. Monatsber. Akad. Wiss. Berlin, 551-8.Google Scholar
Salomon, (W.), 1930. Mitt. Geschichte Med. Naturw. Tech. 29, 1.Google Scholar
Smith, (C. S.), 1958. Trans. Amer. Min. Met. Congrs. 212, 574-89.Google Scholar
Soldani, (D. A.), 1794. Sopra una pioggetta di sassi …. Dissertazione. Siena.Google Scholar
Tata, (A. D.), 1794. Memoria sulla piogga di pietre …. Napoli.Google Scholar
Tata, (A. D.), 1800. Ann. Phys. 6, 156-69.Google Scholar
Van Schmus, (R. W.), 1967. Geochimica Acta, 31, 2027-42.10.1016/0016-7037(67)90141-XCrossRefGoogle Scholar
Van Schmus, (R. W.) and Wood, (J. A.), 1967. Ibid. 31, 747-65.10.1016/S0016-7037(67)80030-9CrossRefGoogle Scholar
Wahl, (W.), 1952. Ibid. 2, 91-117.10.1016/0016-7037(52)90002-1CrossRefGoogle Scholar
Winchell, (A. N.) and Winchell, (H.), 1961. Elements of Optical Mineralogy. Wiley, New York.Google Scholar
Wood, (J. A.), 1963. Chapter 12 of The Moon, Meteorites, and Comets. Ed. B. M. Middlehurst, and Kuiper, G. P.. Chicago.Google Scholar