CO
Name
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Structure Class
Carbonaceous chondrites
Chemical Class
CO3.8
Country
Year found
1970
Mass
23 kg
[Museum Collection]
(1) 1.21g
This is 1 of 3 approved meteorites classified as CO3.8. Search for specimens in the Smithsonian Institution collection (U.S.): Search for this meteorite in the Natural History Museum collection (U.K.): Published in Meteoritical Bulletin, no. 53, Meteoritics 10, 133-158 (1975)
Name
*click on the Name for more information
Structure Class
Carbonaceous chondrites
Chemical Class
CO3.6
Country
Year found
2006
Mass
3.76 kg
[Museum Collection]
(1) 5.940g (2) 4.342g
History and physical characteristics: (G. Raade and K. Ødegaard, UOslo; M. Bilet, NorAS) At about 10:20 am on July 14, 2006, a bright fireball traveling SSE-NNW was witnessed by many people and a loud explosion and a rumbling sound was heard in the air above Moss and Rygge in south Norway, on the east side of the Oslofjord. Shortly after, a small meteorite was heard to land on an aluminum sheet and was recovered. Extensive searches in the area have resulted in the recovery of a total of 5 stones (Table 6). Note that light rainfall occurred in the area on July 29, 30, and 31. Petrography: (J. Grossman, USGS; G. MacPherson, SI; L. Chizmadia, UHaw; A. Rubin, UCLA): Contains abundant small chondrules (most < 200 μm), small (
Name
*click on the Name for more information
Structure Class
Carbonaceous chondrites
Chemical Class
CO3
Country
Year found
2011
Mass
1836 g
[Museum Collection]
(1) 394g
This is 1 of 642 approved meteorites (plus 1 unapproved name) classified as CO3. Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
Name
*click on the Name for more information
Structure Class
Carbonaceous chondrites
Chemical Class
CO3
Country
Year found
2013
Mass
652 g
[Museum Collection]
(1) 6.1g
History: Purchased by Eric Twelker in February 2013 from a Moroccan dealer at the Tucson Gem and Mineral Show. Petrography: (A. Irving and S. Kuehner, UWS) Small chondrules (mostly 0.2-0.6 mm, some up to 1.5 mm) and fine-grained CAI (composed of hibonite and spinel, with rims of aluminous clinopyroxene) in a dark brown, stained matrix. Minor pentlandite occurs in the matrix. Geochemistry: Olivine (Fa0.3-39.1; Cr2O3 in ferroan olivine 0.06-0.15 wt.%, mean 0.09 wt.%, s.d. 0.03 wt.%, N = 7), orthopyroxene (Fs1.3-8.9Wo4.3-2.8), clinopyroxene (Fs1.4Wo38.6; Fs1.3Wo48.8; Fs16.9Wo53.0). Classification: Carbonaceous chondrite (CO3). Subtype is estimated to be 3.5 on the basis of the narrow distribution of Cr2O3 in ferroan olivine. Specimens: 22.3 g and one polished thin section are at UWB. The remainder is held by Twelker.
Name
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Structure Class
Carbonaceous chondrites
Chemical Class
CO3
Country
Year found
2017
Mass
397 g
[Museum Collection]
(1) 1.6g
History: Discovered by an anonymous person an purchased in Erfoud in April 2017 Petrography: (R. Bartoschewitz, Bart) Chondrules (avaerage ~ 200 µm), chondrule fragments, and CAIs are embedded in a fine-grained brownish matrix (about 20 vol%). Magnetic susceptibility logc=4.10. Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Random measurements of olivine grains revealed Fa37.8±2.9 (Fa29.2-44.8), n=24; feldspar An60Ab38 (n=1). Taenite Ni=38.4, Co=0.4 wt.-% (n=1). Classification: Carbonaceous chondrite (CO3, S1) Specimens: 20.2 g on deposit at Kiel, main mass anonymous
Name
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Structure Class
Carbonaceous chondrites
Chemical Class
CO3
Country
Year found
2019
Mass
2.02 kg
[Museum Collection]
(1) 51.24g (2) 41.92g
History: The meteorite was purchased from a local meteorite dealer in Algeria. Physical characteristics: Brownish fragment without fusion crust. Petrography: The meteorite shows a dark brownish to black interior and is composed of abundant small chondrules, CAIs, and mineral fragments set into a fine-grained matrix. Chondrules are dominantly porphyritic type I with a mean diameter of about 0.2 mm. Some sulfides and FeNi metal are present in matrix and chondrules.
Name
*click on the Name for more information
Structure Class
Carbonaceous chondrites
Chemical Class
CO3
Country
Year found
2022
Mass
456 g
[Museum Collection]
(1) 16.59g
History: The meteorite was purchased from a meteorite dealer in Morocco. Physical characteristics: Brownish rock without fusion crust. Petrography: The meteorite shows a dark brownish to reddish interior and is predominantly composed of abundant small chondrules, CAIs, and mineral fragments set into an abundant fine-grained matrix. Chondrules have a mean diameter of about 0.2 mm. Few chondrules are surrounded by fine-grained rims. Opaque phases are partly altered metal and troilite.