[PolandMet]

History and physical characteristics: Several dark brown stones with little remnant fusion crust were purchased in Erfoud in October 2007. TKW is ~4kg.
Petrography (J. Wittke and T. Bunch, NAU): Polymict breccia with a wide range in chondrule size (0.3 to 11.1mm). Several igneous-textured, non-chondritic enstatite objects (2–7.5mm) are also present. A few very unusual FeS – Fe oxide- bearing veins (<one mm thick and >2.8cm in length) transcend a 6.5x2.6cm slice. Chondrule mesostasis is nearly free of devitrification. Olivine in type II chondrules is strongly zoned. Weathering grade is W3 and the shock level is S2/3.
Mineral compositions: Type II PO olivine is Fa7.4 to 38.7, Cr₂O₃ = 0.07 to 0.48, peak at 0.28 wt.%; FeO/MnO = 42–54. Enstatite in non-chondritic objects is Fs_0.02Wo_1.0.
The only other types LL3.2 listed in Met. Bulletin: NWA 2769, NWA 4497, NWA 4651

Page update: 2020-06-06 23:48