| Locality type: | Meteorite Fall Location |
| Classification |
|---|
|
| Species: | 'Plagioclase' (not an IMA approved species) |
| Formula: | (Na,Ca)[(Si,Al)AlSi2]O8 |
| 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) |
| Confirmation |
|---|
|
| Validity: | Believed Valid |
| Data |
|---|
|
| Mineral Data: | Click here to view Plagioclase data |
| Locality Data: | Click here to view Chaves meteorite, Vilarelho da Raia, Vilarelho da Raia, Chaves, Vila Real, Portugal |
| Data Identifiers |
|---|
|
| Mindat Occurrence Record ID: | 908579 |
| Long-form Identifier: | 1:3:908579:4 |
| GUID (UUID V4): | 8673b5fc-e333-470c-bba0-2526c4cdb55c |
| Nearest other occurrences of Plagioclase |
|---|
|
|
| 39.2km (24.4 miles) | ⓘErvedosa Mine (Tuela Mine), Ervedosa, Vinhais, Bragança, Portugal |
| 46.7km (29.0 miles) | ⓘPenouta mines, Viana do Bolo, Ourense, Galicia, Spain |
| 52.2km (32.4 miles) | ⓘBorrageiro Mine, Cabril, Montalegre, Vila Real, Portugal |
| 70.9km (44.1 miles) | ⓘLamas de Olo pluton, Vila Marim, Vila Real, Vila Real, Portugal |
| 96.6km (60.0 miles) | ⓘPresqueira pegmatite, Forcarei South pegmatite field, Forcarei, Pontevedra, Galicia, Spain |
| References |
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|
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. |
| Reference Search (possible matching items) |
|---|
 | | Journal (article/letter/editorial) | | compact group of bodies and form the stable "meteorite swarm" in resonant orbit (Hughes, 1982). A small...from the recent cosmic-ray irradiation of the meteorite; the rest presumably comes from a presolar cosmic-ray...Interstellar amorphous carbon in the Murchison meteorite: Carrier of neon-E(L). Sachiko Amari,' Edward...movement of the ice with some ice dropping into the meteorite concentration zone of the Main Icefield. The majority...of 820 ± 80°C for the eucrite-related LEW86010 meteorite. Estimates of metamorphic temperatures of equilibrated |
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