Blaubeuren        48°24’06.4"N, 9°46’01.3"E

Baden-Wurttemberg, Germany

Find: 1989

Classification: Ordinary chondrite (H4-5)

History: (D. Heinlein): In the garden of his property in Blaubeuren-Weiler, Mr. Hansjörg Bayer was laying an empty pipe for power cabling in 1989. When excavating the cable duct, he found a stone of over 30 kg at 50-70 cm depth, which had an unusually high density and was attracted to a magnet. The finder noticed the object as something special, hence he kept the stone in his garden from 1989 to 2015. In this period it was placed at different locations, always outdoors, exposed to weathering. Since 2015 the stone was kept dry in the basement of his house. In 2020 it was examined and recognized as a stony meteorite.

Physical characteristics: (D. Heinlein, A. Bischoff, IfP): The rock has a mass of 30.26 kg and is heavily weathered at the outside, since it was lying in the garden for several decades. Bulk density is 3.34±0.01 g/cm3. Fusion crust is absent due to weathering. After the examination of the meteorit,e another fragment of 410 grams was found in the garden, which obviously was broken off from the main piece.

Petrography: (A. Bischoff, IfP): The meteorite is heavily weathered (W3). The remaining metal grains have thick rims of terrestrial alteration products (Fe-oxides and Fe-hydroxides). The rock is a breccia containing fragments of petrologic type 4 and type 5. The breccia is very weakly shocked (S2).

Geochemistry: (K. Klemm, A. Bischoff, IfP): The mean composition of olivine is Fa_18.4±0.3 with a compositional range of Fa_18.0-19.2 (n = 19). The low-Ca pyroxenes have a mean composition of Fs_16.2±0.4 (n = 18) with a range of Fs_15.7-17.4.

Classification: (K. Klemm, A. Bischoff, IfP): H4-5; the rock is a brecciated H-group ordinary chondrite containing fragments of petrologic type 4 and type 5.

Specimens: Type specimen: 20.2 g, IfP; the main mass with finder