Licking        37°28.804’N, 91°52.283’W

Missouri, United States

Find: June 2015

Classification: Iron meteorite (IVA)

History: A single specimen was found in June 2015 by Dan and James Goes while they were using a metal detector on their property. Found just below the surface in a bank beside an old road.

Physical characteristics: The 8068 g mass has a shape similar to a flattened loaf of bread. The dark brown to black exterior, shiny surface is locally rusty red to light orange.

Petrography: (C. Herd and Y. Orui, UAb): Optical investigation and bandwidth measurement of a 2 × 3.5 cm polished and etched slice reveals a well-developed Widmanstatten pattern consistent with a fine octahedrite (average bandwidth = 0.4±0.1 mm, n = 26). Plessite is common. Inclusions were not observed.

Geochemistry: Bulk composition: ICP-MS data (G. Chen and C. Herd, UAb): Ni = 9.29 wt%, Co = 4.1 mg/g; Ir = 1.0, Pt = 4.4, Os = 0.4, Ru = 2.6, Rh = 0.7, Pd = 5.5, Au = 1.9, Ga = 2.9, As = 13.8, W = 0.4, Re = 0.1, Cu = 139 (all μg/g), obtained by solution ICP-MS using North Chile (Filomena) as a calibration standard.

Classification: (C. Herd, UAb): Iron, IVA, fine octahedrite.

Specimens: Type specimen of 23.6 g, including a single, 17 g etched slice, a smaller 4 g piece, and several 0.5 g pieces (one of which was used for ICP-MS analysis), at UAb. Main mass R. Garcia and R. Cucchiara.