MARS ROCK : Retro Martian Meteorite Display - NWA 8657 Diabasic Shergottite

This meteorite display features a sample of a meteorite from the planet Mars! - a small sample of the Martian shegottite "NWA 8657" which was recovered from the remote Saharan Desert of Morocco in 2014.

Refer to the photo. The black centimeter cube is shown for scale and is not included.


The meteorite specimen is encased in a clear acrylic gemjar which is placed inside a handsome display box that has a black pebblegrain finish and a glass viewing window. The Mars Rock can be removed from the case and handled or examined. The color artwork inside the display has a retro-vintage astronomy theme. This display would make the ideal gift for someone who has everything. This would also make a fine outreach or educational prop and it would look great on display in the office or observatory.

More info about the NWA 8657 Martian meteorite -

Northwest Africa 8657 (NWA 8657)

(Northwest Africa)

Purchased: 2014 Sep

Classification: Martian meteorite (Shergottite)

History: Purchased by Eric Twelker from a Moroccan dealer at the Denver Show in September 2014.

Physical characteristics: Wind-ablated exterior with some small patches of dull black fusion crust. Cut interior surfaces are overall greenish-gray with clear, glassy maskelynite evident, and sporadically distributed dark glass pockets and veinlets

Petrography: (A. Irving and S. Kuehner, UWS) Diabasic texture. Composed predominantly of complexly zoned, prismatically-twinned clinopyroxene (up to 3.8 mm long) and maskelynite laths (up to 1.8 mm long) with accessory ilmenite, ulvöspinel, pyrrhotite, merrillite, chlorapatite and vesicular glass. Minor components are anorthoclase (containing blades of silica polymorph) and symplectitic intergrowths of ferrosilite+silica.

Geochemistry: Subcalcic augite (Fs20.8-21.8Wo36.4-34.1, FeO/MnO = 28-30, N = 2), ferroan subcalcic augite (Fs39.1Wo30.7, FeO/MnO = 39), pigeonite (Fs33.7-53.1Wo11.8-11.6, FeO/MnO = 38-39, N = 2), ferropigeonite rims (Fs65.1-67.1Wo18.7-14.4, FeO/MnO = 37-41, N = 3), ferrosilite (Fs75.4Wo2.0, FeO/MnO = 41), plagioclase (maskelynite) (An42.3-45.3Or2.8-2.7, N = 2), anorthoclase (An33.4Or15.0).

Classification: Martian (shergottite, diabasic). Likely paired with NWA 8656.

  • 3 available
$39.00