Status: Official
| Basic information | Name: Northwest Africa 16819 This is an OFFICIAL meteorite name. Abbreviation: NWA 16819 Observed fall: No Year found: 2020 Country: (Northwest Africa) Mass: 190.8 g |
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| Classification history: | Recommended: CV3 [explanation] This is 1 of 518 approved meteorites (plus 2 unapproved names) classified as CV3. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites |
| Comments: | Approved 25 Jul 2024 |
| Writeup | Writeup from MB 113: Northwest Africa 16819 (NWA 16819) (Northwest Africa) Purchased: 2020 Classification: Carbonaceous chondrite (CV3) History: Purchased by Sean Tutorow in Morocco in December 2020 from Morocco. Physical characteristics: Two pieces that fit together. Saw cut surface displays numerous chondrules and scattered CAIs set in a dark gray-brown groundmass. Petrography: (C. Agee, UNM) This meteorite has Type I and Type II chondrules and CAIs, the largest of which are 4 mm in apparent size. The groundmass is FeO-rich (FeO=38.0±2.1wt%, n=4, with only moderately low totals of 94%) indicating that phyllosilicates or other hydrous phases are minor in abundance. Geochemistry: (M. Spilde and C. Agee, UNM) Type I chondrule olivine Fa3.5±2.4, n=6; ferroan olivine Fa27.1±20.1, Fe/Mn=89±24, n=4; low-Ca pyroxene Fs2.5±1.7 Wo1.1±0.2, n=6. Classification: Carbonaceous chondrite (CV3). Specimens: 22.0 g on deposit at UNM, Sean Tutorow holds the main mass. |
| Data from: MB113 Table 0 Line 0: | Place of purchase: Morocco Date: P 2020 Mass (g): 190.8 Pieces: 2 Class: CV3 Shock stage: low Weathering grade: moderate Fayalite (mol%): 3.5±2.4, 27.1±20.1 Ferrosilite (mol%): 2.5±1.7 Wollastonite (mol%): 1.1±0.2 Classifier: C. Agee, UNM Type spec mass (g): 22 Type spec location: UNM Main mass: Sean Tutorow Comments: Field name G734; submitted by C. Agee, UNM |