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NWA 6957 CR2 (S2, W2)
A 256g lot of 4 stones was purchased out of Moroccan in August 2011. The meteorite was cut by Montana Meteorite Laboratory and a sample submitted to Dr Tony Irving for analysis toward classification. Separated chondrules with prominent rims of altered kamacite (plus some troilite) are set in a dark brown matrix rich in cronstedtite-tochilinite.  Olivine compositions are skewed to very magnesian compositions (Fa1.2-5.2), but there are much more ferroan olivines in the matrix (up to Fa67.4).  Other minerals are enstatite (Fs1.3-1.8Wo0.6-4.6), Cr-Al-bearing diopside (Fs3.0Wo39.1; Fs1.2Wo42.9), altered kamacite and troilite.  Oxygen isotopes determined by laser fluorination at Okayama University (d17O = -2.642, -3.316; d18O = 0.355, -0.505; D17O = -2.832, -3.055 per mil) plot on the established trend for CR chondrites. Full slices of this meteorite have a smooth satin finish and come in a quality labeled large display box for protection and years of viewing pleasure. Scale cube is 1cm on each side and not included in the sale.
1.39g full slice of NWA 6957
$56
SOLD
1.93g full slice of NWA 6957
$77
2.37g full slice of NWA 6957
$95
$160
4.01g full slice of NWA 6957
0.99g full slice of NWA 6957
$40
SOLD
$41
SOLD
1.02g endcut of NWA 6957
1.06g full slice of NWA 6957
$42
SOLD
$50
SOLD
1.26g full slice of NWA 6957
1.36g full slice of NWA 6957
$54
SOLD
$55
SOLD
1.38g full slice of NWA 6957
1.42g endcut of NWA 6957
$57
SOLD
$59
SOLD
1.48g full slice of NWA 6957
1.62g full slice of NWA 6957
$65
$97
2.42g endcut of NWA 6957
2.71g endcut of NWA 6957
$108
$109
SOLD
2.73g full slice of NWA 6957
2.92g endcut of NWA 6957
$117
SOLD
$121
3.02g full slice of NWA 6957
3.36g full slice of NWA 6957
$134
$150
3.75g full slice of NWA 6957