For Sale IconNWA 15864 CR2 Carbonaceous Chondrite Meteorites for Sale

Location: Northwest Africa, Algeria. Purchased in 2022.

Found: 2021.

Classification: Carbonaceous chondrite (CR2).

Description from NWA 15175, See note below: Dark stone. Cut face reveals large well-delineated chondrules and metal. Petrography: (J. Gattacceca, CEREGE; Trygve PrestgardIPAG) Chondrite with well-delineated chondrules with apparent diameter 1160±410 µm (n=14) and CAIs (<1 vol.%) up to 3 mm in diameter set in an abundant fine-grained iron-rich matrix. Opaque minerals are troilite, metal (6.1 vol.%), and magnetite. Geochemistry: Olivine Fa1.4±0.2, range Fa1.1-1.7 (n=6). Low-Ca pyroxene Fs1.6Wo0.7 (n=2). Defocused analyses of the matrix FeO 29.4 wt%, analytical total 85.1 wt% (n=2). Clast: olivine Fa 2.7 (n=1), defocused matrix FeO 31.0±1.0 wt% and analytical total 79.4±3.7 wt% (n=4). IR spectra of the matrix (Trygve Prestgard, IPAG) show widespread Fe-rich hydrated silicates, scarce and barely detectable carbonate signature, and presence of olivine in all matrix fragments.

Classification: Carbonaceous chondrite (CR2). The low analytical totals in the matrix and IR transmission transmission spectroscopy indicate the presence of hydrous phases. Based on IR spectroscopy, the extent of aqueous alteration is likely lower than that of Renazzo.

Note: NWA15864 is paired with NWA15175. Analytical work for NWA15864 has been completed, but acceptance by the Nomenclature Committee has been delayed for reasons we do not know.

Link to Meteoritical Bulletin Database.

# NWA15864-8 # NWA15864-2-21 # NWA15864-3-3 # NWA15864-3-7 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: 0.8 gm Weight: 2.2 gm Weight: 3.3 gm Weight: 3.7 gm
Features: Slice of fragment Features: Slice of fragment Features: Slice of fragment Features: Slice of fragment
Price: $17 Price: $37 Price: $55 Price: $61

# NWA15864-3-8 # NWA15864-3-81 # NWA15864-3-81 # NWA15864-4-0 # NWA15864-5-0
Weight: 3.8 gm Weight: 3.8 gm Weight: 3.8 gm Weight: 4.0 gm Weight: 5.0 gm
Features: Slice of fragment Features: Slice of fragment Features: Slice of fragment Features: Slice of fragment Features: Slice of fragment
Price: $62 Price: $62 Price: $62 Price: $64 Price: $80

# NWA15864-5-2 # NWA15864-7-5 # NWA15864-8-1 # NWA15864-8-6 # NWA15864-25-8
Weight: 5.2 gm Weight: 7.5 gm Weight: 8.1 gm Weight: 8.6 gm Weight: 25.8 gm
Features: Slice of fragment Features: Slice of fragment Features: End of fragment Features: Slice of fragment Features: End of fragment
Price: $83 Price: $118 Price: sold Price: sold Price: sold