Du kan ställa in dina cookie-inställningar med hjälp av knapparna nedan. Du kan uppdatera dina inställningar, ta tillbaka ditt samtycke när som helst och se en detaljerad beskrivning av de typer av cookies som vi och våra partners använder i vår Cookie-policy.
Petrography: (A. Irving, UWS, and P. Carpenter, WUSL) Well-defined closely-packed, unequilibrated chondrules (apparent diameter 810 ± 270 µm, N = 26) are set in a sparse fine-grained matrix containing kamacite (stained with secondary Fe oxides), taenite, and troilite.
Geochemistry: Olivine (Fa19.1±11.5, range Fa0.6-33.2, N =8; Cr2O3 in ferroan olivine 0.03-0.10 wt.%, mean 0.05 wt.%, sd 0.02 wt.%, N = 13), low-Ca pyroxene (Fs22.3±19.9Wo1.6±1.9, range Fs0.4-55.8Wo0.2-4.7, N = 7), pigeonite (Fs10.9Wo15.1), subcalcic augite (Fs13.8Wo33.6), augite (Fs14.2±1.9Wo39.1±2.4, range Fs12.8-15.5Wo40.8-37.4, N = 2). Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.43.
Petrography: (A. Irving, UWS, and P. Carpenter, WUSL) Well-defined closely-packed, unequilibrated chondrules (apparent diameter 810 ± 270 µm, N = 26) are set in a sparse fine-grained matrix containing kamacite (stained with secondary Fe oxides), taenite, and troilite.
Geochemistry: Olivine (Fa19.1±11.5, range Fa0.6-33.2, N =8; Cr2O3 in ferroan olivine 0.03-0.10 wt.%, mean 0.05 wt.%, sd 0.02 wt.%, N = 13), low-Ca pyroxene (Fs22.3±19.9Wo1.6±1.9, range Fs0.4-55.8Wo0.2-4.7, N = 7), pigeonite (Fs10.9Wo15.1), subcalcic augite (Fs13.8Wo33.6), augite (Fs14.2±1.9Wo39.1±2.4, range Fs12.8-15.5Wo40.8-37.4, N = 2). Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.43.
Nice slice of L3 chondrite! When receiving, it looks less impressive then on photo's, but most of those are taken with polarized filter I suppose. Real thing still impressive, even with my glasses on!