[meteorite-list] AD-Rumuruti, L3.7, LL6 breccia, CR2

From: Gary Fujihara <fujmon_at_meteoritecentral.com>
Date: Thu, 29 Dec 2011 09:39:49 -1000
Message-ID: <E4221A47-53F5-49E3-906C-F4C5DA1641D4_at_mac.com>

The Big Kahuna is taking a break off ebay and offering some high quality meteorites for this holiday season directly to you.

NWA 6394 R3.9 Rumuruti - A single 155g stone was purchased from Morocco July 24, 2010, and most of this meteorite was sold save for a fat end piece which was just sliced by Marlin Cilz to yield 8 full slices featuring distinct chondrules and diverse inclusions and clasts.
http://bigkahuna-meteorites.com/NWAxRum.html

NWA 6954 L3.7 (S1,W1/2) - A single 157g stone was purchased from a Moroccan dealer in September 2011. This is a beautiful representation of an unequilibrated chondrite, featuring well-formed, medium-sized chondrules. Olivine (Fa0.7-39.3; Cr2O3 in ferroan examples is 0.02-0.09 wt.%, mean 0.03 wt.%, s.d. 0.03 wt.%, N =8), orthopyroxene (Fs2.1-24.7Wo0.3-1.3), clinopyroxene (Fs17.5Wo27.1; Fs7.3Wo45.1), sodic plagioclase, altered kamacite, chromite, troilite and taenite.
http://bigkahuna-meteorites.com/NWA6954.html

NWA 6955 LL6 Breccia (S2,W2) - A single 280g stone was purchased out of Moroccan in August 2011. A fresh breccia composed of angular, highly recrystallized chondrite clasts containing rare remnant partial chondrules. Olivine (Fa30.3-30.7), orthopyroxene (Fs24.3-24.7Wo1.9-2.0), clinopyroxene (Fs10.1-10.3Wo43.4?0.0) with accessory chromite, chlorapatite, kamacite (slightly stained) and troilite. An uber-gorgeous breccia that is a feast for the eyes!
http://bigkahuna-meteorites.com/NWA6955.html

NWA 6957 CR2 (S2,W2) - A 256g lot of 4 stones was purchased out of Moroccan in August 2011. 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.
http://bigkahuna-meteorites.com/NWA6957.html

If you've read this far, I will let you know that Mars has landed.

Gary Fujihara
Big Kahuna Meteorites (IMCA#1693)
105 Puhili Place, Hilo, Hawai'i 96720
http://bigkahuna-meteorites.com/
http://shop.ebay.com/fujmon/m.html
(808) 640-9161
Received on Thu 29 Dec 2011 02:39:49 PM PST