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Northwest Africa 12606
Basic information Name: Northwest Africa 12606
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12606
Observed fall: No
Year found: 2018
Country: Morocco
Mass:help 197 g
Classification
  history:
Meteoritical Bulletin:  MB 108  (2020)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 660 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 27 Jul 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12606 (NWA 12606)

Midelt region, Morocco

Purchased: 2018

Classification: Ureilite

History: Specimen is cataloged at the Royal Ontario Museum as M59776 (formerly CC2).

Petrography: (I. Nicklin, ROM) Sample is primarily composed of olivine bearing reduction rims. Several large aggregates of olivine crystals, the largest measuring 10 by 5 mm, are set in a finer grained matrix of crystal fragments dominated by olivine with minor pyroxene. Approximate modal abundance: 90% olivine, 5% pyroxene, 5% graphite. Olivine shows undulose extinction.

Geochemistry: Olivine: clast Fa17.5±3.2, FeO/MnO=35.6±8.8 (n=12), matrix Fa10.3±4.6, FeO/MnO=18.8±9.3 (n=11); Pyroxene: augite Fs3.1±0.6Wo34.4±7.6, FeO/MnO=9.5±1.9 (n=3); pigeonite Fs6.9±1.5Wo6.6±1.2, FeO/MnO = 22.3±4.3 (n=14)

Data from:
  MB108
  Table 0
  Line 0:
State/Prov/County:Midelt region
Place of purchase:Toronto
Date:P 2018
Mass (g):197
Pieces:5
Class:Ureilite
Weathering grade:low
Fayalite (mol%):14.09±5.30
Ferrosilite (mol%):3.07±0.61; 6.90±1.51
Wollastonite (mol%):34.40±7.56; 6.55±1.22
Classifier:V. Di Cecco, ROM
Type spec mass (g):21.34
Type spec location:ROM
Main mass:Driss Bokarch; Ayoub Ouaachi, Yassine Mounda and Christine Cline
Comments:Submitted by V. Di Cecco, ROM
Institutions
   and collections		 ROM: Royal Ontario Museum, 100 Queen's Park, Toronto, Ontario M5S 2C6, Canada (institutional address; updated 18 Oct 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is the only approved meteorite from Midelt region, Morocco
     This is 1 of 2082 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)
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Revision
  history:
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