For Sale IconNWA 8657, NWA 10703 Martian Shergottite Meteorites for Sale

Location: Sahara Desert, exact location unknown.

Purchased: September 2014.

Classification: Martian meteorite (Shergottite).

Description (NWA8657): 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 and NWA 10703.

Link to Meteoritical Bulletin Database.

Other references:

Link to Dr. Anthony Irving's Martain Meteorite Page

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#NWA10703-193 #NWA8657-225 #NWA10703-232 #NWA10703-263 About Scale:  Each photo has a small one centimeter cube.  That's a little less than a half inch on a side.  The coin above is a US dime.
Weight: 0.193 gm Weight: 0.225 gm Weight: 0.232 gm Weight: 0.263 gm
Features: Part slice Features: Part slice Features: Part slice Features: Part slice
$53 sold $63 sold

#NWA10703-269 #NWA10703-273 #NWA8657-318 #NWA10703-320 #NWA10703-326
Weight: 0.269 gm Weight: 0.273 gm Weight: 0.318 gm Weight: 0.320 gm Weight: 0.326 gm
Features: Part slice Features: Part slice Features: Part slice Features: Part slice Features: Part slice
$72 sold $108 $85 sold

#NWA8657-339 #NWA10703-395 #NWA8657-407 #NWA10703-412 #NWA10703-486
Weight: 0.339 gm Weight: 0.395 gm Weight: 0.407 gm Weight: 0.412 gm Weight: 0.486 gm
Features: Part slice Features: Part slice Features: Part slice Features: Part slice Features: Part slice
sold sold sold sold $126

#NWA8657-537 #NWA10703-565 #NWA8657-614 #NWA10703-645 #NWA8657-1-387
Weight: 0.537 gm Weight: 0.565gm Weight: 0.614 gm Weight: 0.645 gm Weight: 1.387 gm
Features: Part slice Features: Part slice Features: Part slice Features: Part slice Features: Part slice
sold $146 $205 sold $456

#NWA8657-1-542 #NWA8657-1-784 #NWA10703-1-871 #NWA10703-2-190 #NWA8657-1-952
Weight: 1.542 gm Weight: 1.784 gm Weight: 1.871 gm Weight: 2.190 gm Weight: 1.952 gm
Features: Part slice Features: Part slice Features: Part slice Features: Part slice Features: End
$506 $585 $473 $553 $639

#NWA8657-2-320 #NWA8657-3-593 #NWA10703-5-018 #NWA10703-5-101
Weight: 2.320 gm Weight: 3.593 gm Weight: 5.018 gm Weight: 5.101 gm
Features: Part slice Features: End Features: Part slice Features: Part slice
$759 $1083 $1260 $1280