MARS ROCK : Retro Martian Meteorite Display - NWA 7397 Shergottite

This new meteorite display features a sample of a meteorite from the planet Mars! - a small sample of the Martian shegottite "NWA 7397" which was recovered from the remote Saharan Desert of Morocco in 2012.

Refer to the photo. The black centimeter cube is shown for scale and is not included.
Note - I am now putting the meteorite fragment into a clear gelatin capsule which is placed inside the display. This helps protect the fragment from shifting around inside the display.

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 7397 Martian meteorite -

Northwest Africa 7397 (NWA 7397)

Northwest Africa

Purchased: 2012 Jun

Classification: Martian meteorite (Shergottite)

History: Found near Smara, Morocco and purchased by Darryl Pitt and David Gheesling from a dealer in Zagora, Morocco in 2012 June.

Physical characteristics: A 2130 g, partially covered in fusion crust. Interior larger ovoid crystals in a finer grained matrix.

Petrography: (A. Irving and S. Kuehner, UWS) Large oikocrysts (up to 1.5 cm across) of low-Ca pyroxene enclose multiple chadacrysts of olivine and Cr-rich chromite. Relatively equigranular domains between oikocrysts are composed of low-Ca and high-Ca pyroxene (showing very limited compositional zoning), maskleynite and olivine with accessory merrillite, Ti-chromite, pyrrhotite and ilmenite (with associated grains of baddeleyite up to 10 μm across). Olivine contains sparse melt inclusions composed of K-Na-Al-Si-rich glass surrounded by characteristic post-shock radial expansion microfractures.

Geochemistry: Olivine (Fa38.9-40.7; FeO/MnO = 47-54), orthopyroxene (Fs30.3Wo3.3; FeO/MnO = 36), pigeonite (Fs25.1-27.6Wo6.6-10.0; FeO/MnO = 28-33), subcalcic augite (Fs17.0-19.0Wo35.1-35.4; FeO/MnO = 22-25). Bulk trace element composition (G. Chen, UAb): analysis by ICP-MS of clean wire-saw cutting dust gave (in ppm) La 1.66, Ce 4.48, Nd 2.93, Sm 1.13, Eu 0.3, Gd 1.59, Dy 1.95, Yb 1.02, Lu 0.14, Hf 1.66, Th 1.15, Rb 2.89, Sr 33.6.

Classification: Martian (shergottite, poikilitic).

Specimens: A total of 20 g of type material and one large polished thin section are on deposit at UWB.

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