NWA 15864 CR2 Carbonaceous Chondrite Meteorites for Sale

Location: Northwest Africa, Algeria. Purchased in 2022.

Found: 2021.

Classification: Carbonaceous chondrite (CR2).

Description: Petrography: Well-defined chondrules (apparent diameter 1150±440 µm, N = 25) containing devitrified glass together with some CAI and mineral fragments are set in a sparse fine grained matrix (~15 vol%, opaque in thin section). There is a bimodal distribution of olivine compositions in chondrules (both Mg-rich and more Fe-rich); some chondrules contain grains of altered kamacite and others are rimmed by altered kamacite. The matrix is Fe-rich and relatively S-rich, and contains accessory altered kamacite, pentlandite, troilite (some Cr-bearing) and apparent phyllosilicates (with low oxide sums consistent with hydrous content). Minerals in CAI include gehlenite, spinel and diopside. (L. Garvie, ASU): XRD patterns show the presence of a small reflection for phyllosilicates, indicating a petrologic type 2. Geochemistry: Forsterite (Fa _2.2±1.1 , range Fa _0.4-3.6 , N = 7), ferroan olivine Fa _44.3±15.6 , range Fa _32.3-62.0 , N = 3), low-Ca pyroxene (Fs _3.5±1.8 Wo _0.6±0.3 , range Fs _1.9-5.9 Wo _0.3-1.0 , N = 5), diopside (Fs _2.3±1.1 Wo _40.8±6.1 , range Fs _1.0-4.3 Wo _35.2-48.4 , N = 8), anorthite (An _96.9-97.0 Or _0.1 , N = 2). Classification : Carbonaceous chondrite (CR2). Likely paired with NWA 15097 , NWA 15783 , and NWA 15916

Link to Meteoritical Bulletin Database.


# NWA15864-3-7	# NWA15864-3-8	# NWA15864-3-81	# NWA15864-4-0	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: 3.7 gm	Weight: 3.8 gm	Weight: 3.8 gm	Weight: 4.0 gm
Features: Slice of fragment	Features: Slice of fragment	Features: Slice of fragment	Features: Slice of fragment
Price: sold	Price: sold	Price: sold	Price: sold


# NWA15864-5-0	# NWA15864-5-2	# NWA15864-7-5	# NWA15864-8-6	# NWA15864-25-8
Weight: 5.0 gm	Weight: 5.2 gm	Weight: 7.5 gm	Weight: 8.6 gm	Weight: 25.8 gm
Features: Slice of fragment	Features: Slice of fragment	Features: Slice of fragment	Features: Slice of fragment	Features: End of fragment
Price: sold	Price: sold	Price: sold	Price: sold	Price: sold