Dora Pallasite
Item: 53.1 Dimensions: 100 x 45 x 7 mm Weight: 116.8 g
Provenance: Max-Planck-Institute, Mainz
This piece was plowed up and set by a fence row. The olivines are dark and fractured, but large.
Partial/complete: Complete slice
Cube: ~15mm x 15mm x 15mm ≈ 15mm3

Dora

Country: USA
Region: New Mexico
Found: ~1955
Group: Stony-Iron
Type: Pallasite
Class: PMG
Total known weight: 7.6kg

A 7.6kg mass was plowed up 10 or 12 years prior to recognition and left by a fence in a farmyard, A.L.Graham et al., Cat. Met., 1985, p.125. Classification and analysis of metal phase, main group pallasite, 11.7% Ni, 16.7 ppm Ga, 33.4 ppm Ge, 0.093 ppm Ir, E.R.D.Scott, GCA, 1977, 41, p.349. Study of olivine-metal texture; olivine Fa12.9, E.R.D.Scott, GCA, 1977, 41, p.693. Mineralogy and petrology, described and illustrated, P.R.Busek, GCA, 1977, 41, p.711. Study of dislocation structures in olivines, stress history, T.Matsui et al., LPSC, 1980, 11, p.688 (abs.); see also, Geophys. Res. Lett., 1980, 7, p.1007. Chemical composition of olivines, J.V.Smith et al., J. Geophys. Res., 1983, 88 (suppl.), p.B229. Oxygen isotopic composition, R.N.Clayton and T.K.Mayeda, GCA, 1996, 60, p.1999.