Trebbin meteorite, Trebbin, Teltow-Fläming, Brandenburg, Germanyi

Regional Level Types
Trebbin meteorite	Meteorite Fall Location
Trebbin	Town
Teltow-Fläming	District
Brandenburg	State
Germany	Country

Fell 1 March, 1988.
A single mass weighing 1250 g fell and fragmented on impact into about 30 pieces.
Stone. Ordinary chondrite (LL6,br).

Under a cloudy sky large hissing noise were followed by a detonation and a meteorite struck the roof and broke into numerous fragments, the largest a 300 g piece. The original stone apparently had a length of ~11cm and had been entirely covered with a fusion crust. Described as a cataclastic breccia, chondrules are scarce, but of diverse composition and textures with barred and porphyritic olivine chondrules plus pyroxene-rich and plagioclase-rich chondrules. Minor troilite and Fe-Ni metal are found in most chondrules. Broken and euhedral clasts of diverse composition permeate the matrix as well. Olivine (Fa29.8) and orthopyroxene (Fs24.7Wo1.5) indicate that the meteorite is an LL ordinary chondrite (very low in total iron). Besides Fe-Ni metal and troilite, opaques include accessory chromite (1.1 wt%) and rare ilmenite and pentlandite. Fe-Ni metal is rich in nickel and appears to be mostly taenite. A few small phosphates are recorded as well. Textural features and microscopic aggregates indicate that the Trebbin meteoroid may well have received more than its 'fair share' of impact disturbance(s) between the formation of its basic constituents on an ancient homeworld and its final stop at the earth's surface.

Trebbin is the 2nd largest of the 4 German LL chondrites recovered between 1869 and 1988. The LL chondrites are the smallest of the three main ordinary chondrite groups (H, L, and LL). As of early 2015 the 98 LL falls represent approximately 9% of all observed and classified meteorite falls.

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References