This is an OFFICIAL meteorite name.
Abbreviation: NWA 11258
Observed fall: No
Year found: 1996
Country: (Northwest Africa)
Mass:
5 kghistory:
| Recommended: | LL(L)3 [explanation] |
This is 1 of 17 approved meteorites classified as LL(L)3. [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Writeup from MB 106:
Northwest Africa 11258 (NWA 11258)
(Northwest Africa)
Purchased: 1996
Classification: Ordinary chondrite (LL(L)3)
History: Purchased by Ken Regelman in 1996 from a Moroccan dealer.
Petrography: (A. Irving and S. Kuehner, UWS) Very closely packed, well-formed chondrules (apparent diameter 600±300 μm) with little matrix.
Geochemistry: Olivine (Fa1.6-29.1, Cr2O3 in ferroan examples <0.02 wt.%, N = 7), orthopyroxene (Fs0.2-25.3Wo0.6-1.6, N = 3), clinopyroxene (Fs1.0Wo34.8; Fs22.1Wo29.8; N = 2). Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.43.
Classification: Ordinary chondrite. LL(L)3. LL designation is favored based on magnetic susceptibility.
Specimens: 23 g including one polished thin section at UWB; remainder with Mr. K. Regelman.
MB106
Table 0
Line 0:
| Place of purchase: | Morocco |
| Date: | P 1996 |
| Mass (g): | 5000 |
| Pieces: | 1 |
| Class: | LL(L)3 |
| Shock stage: | S2 |
| Weathering grade: | W1 |
| Fayalite (mol%): | 1.6-29.1 |
| Ferrosilite (mol%): | 0.2-25.3 |
| Wollastonite (mol%): | 0.6-1.6 |
| Magnetic suscept.: | 4.43 |
| Classifier: | A. Irving and S. Kuehner, UWS |
| Type spec mass (g): | 23 |
| Type spec location: | UWB |
| Main mass: | K. Regelman |
| Comments: | Work name ARN17-6; submitted by A. Irving |
and collections
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
ARN: Kenneth Regelman, Astronomical Research Network, 206 Bellwood Ave., Maplewood, MN 55117, United States; Website (private address)