Thin section of Chassigny under cross-polarized light (JPL)

Chassigny is a Mars meteorite that was seen to fall on October 3rd, 1815 at about 8:00 am in Chassigny, Haute-Marne, France^[1][2]. Chassigny is the meteorite for which the Chassignites are named and gives rise to the "C" in SNCs. Chassigny is an olivine cumulate rock (dunite). It consists almost entirely of olivine with intercumulous pyroxene, feldspar, and oxides. Chassigny was the only known Chassignite until NWA2737 was found in the Moroccan Sahara in northwest Africa.^[3] A Martian meteorite is a meteorite, that has landed on Earth but is believed to have originated from Mars. ... Haute-Marne is a département in the northeast of France named after the Marne River. ... A Martian meteorite is a meteorite, that has landed on Earth but is believed to have originated from Mars. ... Dunite is an igneous, plutonic rock, of ultramafic composition, with coarse grained or phaneritic texture. ... Olivine basalt The mineral olivine is a magnesium iron silicate with the formula (Mg,Fe)2SiO4. ... Figure 1:Mantle-peridotite xenolith with green peridot olivine and black pyroxene crystals from San Carlos Indian Reservation, Gila Co. ... Lunar Ferroan Anorthosite #60025 (Plagioclase Feldspar). ...

Chassigny is particularly important because, unlike most SNCs, it contains noble gas compositions different from the current Martian atmosphere. These differences are presumably due to its cumulate (mantle-derived) nature. ^[4] A Martian meteorite is a meteorite, that has landed on Earth but is believed to have originated from Mars. ... View of Jupiters active atmosphere, including the Great Red Spot. ...

See also

• Meteorite falls

Meteorite falls are those meteorites that were witnessed by people or automated devices as they transitted the atmosphere or impacted the Earth, and were subsequently collected. ...

References

1. ^ Pistollet (1816) The circumstances of the Chassigny meteorite shower. Ann. Chim. Phys. (Paris) v. 1, pg 45-48.
2. ^ "The Chassigny Meteorite" - From NASA's Jet Propulsion Laboratory, stating it is the only example. URL accessed September 6, 2006.
3. ^ Beck P., Barret J. A., Gillet P., Franchi I.A., Greenwood R. C., Van De Moortele B., Reyard B., Bohn M. and Cotton J. (2005) The Diderot Meteorite, the second chassignite.Lunar and Planet. Sci. XXXVI, Abstract #1326.
4. ^ Mars Meteorite Compendium: Chassigny, Compiled by Charles Meyer.

The National Aeronautics and Space Administration (NASA) is an agency of the United States Government, responsible for that nations public space program. ... The NASA Jet Propulsion Laboratory (JPL), in La Cañada Flintridge, near Los Angeles, California, USA, builds and operates unmanned spacecraft for the National Aeronautics and Space Administration (NASA). ... Note: This article contains special characters. ...