Lodranite

Lodranite
— Group —
Compositional type	Stony
Type	Achondrite
Class	Primitive achondrite
Composition	Meteoric iron, Olivine, Pyroxene

Lodranites are a small group of primitive achondrite meteorites that consists of meteoric iron and silicate minerals. Olivine and pyroxene make up most of the silicate minerals. Like all primitive achondrites lodranites share similarities with chondrites and achondrites.

The lodranite group is named after Lodhran, Pakistan, where the type specimen fell on 1 October 1868 at 14:00. Eyewitnesses of the fall reported a loud bang accompanied by a rising dust cloud to the east of the city, which led to the discovery and retrieval of the meteorite. The "meteorite from Lodran" was first described by Gustav Tschermak in 1870. He described the meteorite being "apart from the nickel-iron it is an olivine-bronzite aggregates of such outstanding sort, that has never been found in a meteorite before only similar to the terrestrial olivine rock". George Thurland Prior was the first to classify the lodran meteorite as the only member of the lodranite group. He also saw close similarities to the ureilites.

Lodranites are primitve achondrites. They are coarser grained than acapulcoites. The main mineral phases are low calcium pyroxene and olivine with minor amounts of plagioclase and troilite. Because of their composition they are related to the chondrites and H class chondrites. Lodranites can be described as chondrites that were heated to the point where FeNi and FeS reach an eutectic point. At this point partial melting occurred and some of the metal- and silica melt was removed.

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