|
Northwest Africa 12713 | |||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Basic information | Name: Northwest Africa 12713 This is an OFFICIAL meteorite name. Abbreviation: NWA 12713 Observed fall: No Year found: 2018 Country: (Northwest Africa) Mass: 307 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 628 approved meteorites (plus 1 unapproved name) classified as CV3. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites | ||||||||||||||||||||||||||||
Comments: | Approved 4 Jul 2019 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 108:
Northwest Africa 12713 (NWA 12713) (Northwest Africa) Find: 2018 Classification: Carbonaceous chondrite (CV3) Petrography: (K. Metzler, IfP) Chondrules, chondrule fragments, CAIs, and AOAs are embedded in a fine-grained dark matrix (about 30 vol% matrix). Many chondrules have apparent diameters between 0.5 and 1 mm, some up to 2.5 mm. CAIs with sizes up to 2 mm are present. Accessories are Fe, Ni metal and sulfides. Geochemistry: Mineral compositions and geochemistry: The mean olivine composition is Fa8.6±10.3 (Fa0.6-39.5; n=25). The mean low-Ca pyroxene composition is Fs1.5±0.9Wo1.0±0.3 (Fs0.4-3.8Wo0.5-1.8; n=19). Classification: CV chondrite based on CAI and AOA occurrence, size of chondrules and CAIs, chondrule-matrix ratio, and mineral chemistry. Petrologic type 3 based on the chemical variation of olivine and pyroxene | ||||||||||||||||||||||||||||
Data from: MB108 Table 0 Line 0: |
|
||||||||||||||||||||||||||||
Institutions and collections |
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012) |
||||||||||||||||||||||||||||
Catalogs: |
| ||||||||||||||||||||||||||||
References: | Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
| ||||||||||||||||||||||||||||
Geography: |
Statistics: This is 1 of 9589 approved meteorites from (Northwest Africa) (plus 1869 unapproved names) | ||||||||||||||||||||||||||||
Also see: |
This lists the most popular meteorites among people who looked up this meteorite.
| ||||||||||||||||||||||||||||
Revision history: |
This lists important revisions made to data for this record.
|