RARE NWA 10720 Nakhlite MARTIAN Meteorite, Fragment, 0. 45 Grams
Item History & Price
| Reference Number: Avaluer:16107544 |
IMCA # 3948, IMCA # 5051INTERNATIONAL METEORITE COLLECTORS ASSOCIATIONAuthenticity GUARANTEED HELLO ALL OLD AND NEW GUESTS!!! We are a team of meteorite and fossil hunters.We search worldwide for new and known meteorites. Since 1995, we have mounted expeditions to Tsarev, Brahin, Kunya Urgench, Dronino, Markovka, Seymchan, Sikhote-Alin and many others in Russia and nearby. We have also collected many meteorites from North Africa, the Middle East, Europe and the Un...ited States.We have gathered samples of almost all types of known meteorites, including a large collection of lunar meteorites.We are on the world market since 2000, and on eBay since 2004. We ship worldwide from USA. We easy combine shipping. We accept different ways of payments, but PayPal is very preferred. As always we hope the best is in future. We'll make a very good business with all you our friends and partners. Please do not hesitate ask us any questions. Happy bidding! Cometshop teamNorthwest Africa 10720 (NWA 10720)Mauritania Purchased: 2015 December 1Classification: Martian meteorite (Nakhlite)History: Purchased 1 Dec 2015 in Mauritania. Recovered from near the border region of Western Sahara, Mauritania and Algeria.Physical characteristics: Several identical appearing stones. The exterior is partially covered by black fusion crust. Freshly broken surfaces reveal a mixture of mm-size, dark-green pyroxene grains and interstitial cream-colored feldspar.Petrography: (C. Agee, UNM) This meteorite has an ophitic texture consisting of 75% augite, 15% feldspar, and 5% olivine. Some augite crystals are prismatic and up to 2 mm in length. There are two feldspars present, oligoclase and alkali feldspar, no maskelynite was observed; feldspar commonly occupies interstices between augite grains. Augites show igneous zoning with Fs-rich rims, olivines are fayalitic and fairly uniform in composition. Apatite was observed.Geochemistry: (C. Agee and M. Spilde, UNM) Olivine Fa86.9ą0.8, Fe/Mn=44ą2, n=5; augite Fs29.0ą7.4Wo39.9ą1.3, range Fs23.0-48.1Wo38.4-41.1, Fe/Mn=35ą3, n=20; plagioclase An21.8ą2.2Ab72.8ą1.5Or5.4ą1.4, n=7; alkali feldspar An6.7ą0.4Ab73.0ą1.2Or20.3ą1.6, n=3. Oxygen isotopes (K. Ziegler, UNM) All samples were acid-washed and analyzed by laser fluorination ?18O = 4.581, 4.903, 4.802; ?17O = 2.669, 2.854, 2.800; ?17O = 0.250, 0.265, 0.265 (linearized, all per mil).Classification: Martian (nakhlite). This is a martian meteorite based on the oxygen isotope values and the Fe/Mn of augite and olivine. It is a nakhlite based on the high percentage of augite present.
We are offering a fragment of this meteorite. The weight is 0.45 grams.
SHIPPING:1. Within USA will be $9.2. Out of USA will be $24.GOOD LUCK !!!
00213
We are offering a fragment of this meteorite. The weight is 0.45 grams.
SHIPPING:1. Within USA will be $9.2. Out of USA will be $24.GOOD LUCK !!!
00213
