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Albite-Anorthite Series from
Chaves meteorite, Vilarelho da Raia, Vilarelho da Raia, Chaves, Vila Real, Portugal

Locality type:Meteorite Fall Location
Species:'Albite-Anorthite Series' (not an IMA approved species)
Comments:Anorthitic plagioclase, usually twinned, has both anorthite and bytownite compositions — Plagioclase Ab9—24 reported by Mason et al.,(1979); Monteiro (1989) reports (Or0.6Ab6An94)—(Or0.6Ab12An 87)
Validity:Believed Valid
References:Mason B., Jarosewich E. & Nelen J. A. (1979) The pyroxene-plagioclase achondrites. Smithson. Contrib. Earth Sci. 22: 27-45. ; Prinz, M., Delaney, J. S., Harlow, G. E., Bedell, R. L., & Nehru, C. E. (1980) Modal studies of mesosiderites and related achondrites, including the new mesosiderite ALHA 77219: Lunar and Planetary Science Conference XI, vol 2: 1055-1071. ; Monteiro, J. F. (1989) Preliminary Study of Chaves Howardite: Abstracts and Program for the 52nd Annual Meeting of the Meteoritical Society. LPI Contribution #712: p.165
Mineral Data:Click here to view Albite-Anorthite Series data
Locality Data:Click here to view Chaves meteorite, Vilarelho da Raia, Vilarelho da Raia, Chaves, Vila Real, Portugal
Nearest other occurrences of Albite-Anorthite Series
39.2km (24.4 miles) Ervedosa Mine (Tuela Mine), Ervedosa, Vinhais, Bragança, Portugal
46.7km (29.0 miles) Penouta mines, Viana do Bolo, Orense (Ourense), Galicia, Spain
52.2km (32.4 miles) Borrageiro Mine, Cabril, Montalegre, Vila Real, Portugal
96.6km (60.0 miles) Presqueira pegmatite, Forcarei South pegmatite field, Forcarei, Pontevedra, Galicia, Spain
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