Météorite martienne - Gabbroic Shergottite - 1,15 Gr, 31 mm Full slice

Description
Météorite martienne - Gabbroic Shergottite - 1,15 Gr, 31 mm Full slice
Sahara

Shergottites are recognized as fragments from the deeper Martian crust and belong to the rarest category of meteorites. Shergottites consist mainly out of Olivine, Pigeonite (pyroxene) and plagioclase feldspar. The olivine inclusions determine for a large part the green colour of the meteorite. The composition is the same as for basalt. The name Shergottite is derived from a witnessed fall on 25 august 1865 in the small town of Shergotty (Shergati) in the Bihar state of India where a large fragment of this meteorite type hit the earth. The complete group of Martian meteorites is named the SNC-group. It consists out of 3 main types: Shergottites, Nakhlites and Chassignites. All having their typical composition. At this moment about 120 different Martian Shergottites are known in the Meteoritical database. This fragment is a very thin slice, showing very interesting inclusions. It belonged to the collection of Luc labenne, a very famous meteorite hunter from France.

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