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Zaklodzie meteorite, Zamość, Lubelskie, Poland
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Iron
Zaklodzie meteorite, Zamość, Lubelskie, Poland

Photo: Chinellato Matteo
Latitude: 50°45'46"N
Longitude: 22°51'58"E
 
 
Enstatite achondrite-ungrouped, weathered
Found in September, 1998; 8.68 kg

Found near the village of Zaklodzie, the Zaklodzie Meteorite is an unusual, but highly weathered Enstatite-rich differentiated rock with clear mineralogical and compositional similarities to both Aubrites and the shock-melted Enstatite Chondrites. Its primary constituent is enstatite (~60 vol%), but Fe-Ni metal (~20 vol%), Troilite (~10 vol%) and 2 varieties of Plagioclase/Feldspar (~10 vol%) are also important. The outer regions, especially, contain typical products of terrestrial weathering (e.g., iron oxides, sulfates, calcite). Inside, however, are found a number of utterly reduced phases typical of the Enstatite clan (oldhamite, keilite, rare sinoite…) plus two new sulfides, Buseckite and Browneite.

Unusual metallic-graphite globules inside enstatite, three different silica minerals (here, tridymite the most abundant), and two generations of alkali-feldspars are just one more reminder that the homeworlds of the Enstatite-rich meteorites were surprisingly diverse. One wonders whether they might have, perhaps, been more numerous than the 4-5 putative parent bodies commonly referred to in the literature.

Mineral List

Alabandite
Albite
var: Andesine
'Albite-Anorthite Series'
Amphibole Supergroup
Browneite (TL)
Buseckite (TL)
Calcite
Clinoenstatite
Cristobalite
Enstatite
'Feldspar Group'
Forsterite
Graphite
Gypsum
Hematite
Iron
var: Kamacite

var: Martensite
Keilite
Magnetite
Oldhamite
'Pyroxene Group'
Quartz
Schreibersite
Sinoite
Taenite
Tridymite
Troilite


28 entries listed. 22 valid minerals. 2 type localities (valid minerals).

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References

Grossman, J. N. & Zipfel, J. (2000). The Meteoritical Bulletin, No. 84, 2000 September. Meteoritics & Planetary Science 35 (9,Suppl.): A199-A225. (Sept 2000).

Stepniewski, M., Borucki, J., Durakiewicz, T., Giro, L. & Sharp, Z. D. (2000) Preliminary Study of a New Enstatite Meteorite from Zaklodzie (Southeast Poland): Meteoritics & Planetary Science 35 (5, Supplement): A152-A153. (Sept 2000)

Patzer, A., Hill, D. H., Boynton, W. V., Franke, L., Schultz, L., Jull, A. J. T., McHargue, L. R. & Franchi, I. A. (2002) Itqiy: A study of noble gases and oxygen isotopes including its terrestrial age and a comparison with Zaklodzie. Meteoritics & Planetary Science 37 (6): 823-833 (2002)

Przylibski, T. A., Zagozdzon, P. P., Kryza, R. & Pilski, A. S. (2005) The Zaklodzie enstatite meteorite: Mineralogy, petrology, origin, and classification. Meteoritics & Planetary Science 40 (S9): A185-A2000. (Sept 2005)

Przylibski, T. A., Jakubowski, T., Karwowski, L., Kryza, R. & Uszczek, K. (2011) New Data on Graphite from the Zaklodzie Enstatite Achondrite (Abstract id. 5198). Meteoritics & Planetary Science 46, Supplement: A193. (July 2011)


Ma, C. (2011) Buseckite, IMA 2011-070. CNMNC Newsletter No. 11, December 2011, page 2891.

Mineralogical Magazine: 75: 2887-2893.

Ma, C., Beckett, J. R. & Rossman, G. R. (2012) Discovery of Buseckite, (Fe,Zn,Mn)S, a New Mineral in Zaklodzie, an Ungrouped Enstatite-Rich Achondrite. Lunar and Planetary Science Conference XLIII. LPI Contribution No. 1659, id.1520. (March 2012)

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