Newsletter |
42,1 |
Location |
Miller Range |
Field Number |
23385 |
Dimensions (cm) |
4.5 x 3.8 x 2.1 |
Weight (g) |
55.68 |
Original Classification |
CV3 Chondrite |
Updated Classification |
CV 3.6 Chondrite Reduced |
Pairing |
MIL 07277;
MIL 090646;
MIL 090677;
MIL 15123;
MIL 15148;
MIL 15192;
MIL 15227;
MIL 15229;
MIL 15240;
MIL 15247;
MIL 15254;
MIL 15255;
MIL 15257;
MIL 15264;
MIL 15265;
MIL 15268;
MIL 15363;
MIL 15472;
MIL 15480;
MIL 15511;
MIL 15516;
MIL 15524;
MIL 15555;
MIL 15565;
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Fayalite (mol%): 0-7 |
B |
A/B |
Exteriors of these carbonaceous chondrites range from 5-98% black/brown fusion crust; some surfaces are shiny with orange rust spots. Exposed surfaces are black to dark reddish brown with oxidation. The interiors range from grey to black matrix with minor rust spots and some have light inclusions. |
These sections are similar enough that a single description is given, although a more detailed description is warranted. These sections exhibit large chondrules (up to 3 mm) with refractory inclusions and amoeboid olivine aggregates in a dark matrix. Metal and sulfide are common in these meteorites, including a ~3 mm irregularly shaped particle in MIL 15148. Olivines range from Fa1-31, with most Fa1-5, and pyroxenes from Fs1-3. The meteorites are unequilibrated and appear to be carbonaceous chondrites, probably reduced CV3s.
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Reclassification and pairing based on Raman spectroscopy (petrologic type 3.6), and on Ni content of metal and sulfide and magnetic susceptibility (Reduced). Details are reported in Righter et al. (2022); doi: 10.1111/maps.13932. |