Meteorite NWA 11105 - Iron (IAB - MG Octahedrite, Anomalous W And Pt Values)
Item History & Price
| Reference Number: Avaluer:5013446 |
NWA 11105 NWA 11105Found Sahara, 2016Iron Meteorite (Siderite)Chemical IAB-MG groupSpecimen is a 3.08g sliceCOMBINED SHIPPING : 5$ per package Northwest Africa 11105Basic informationName: Northwest Africa 11105
This is an OFFICIAL meteorite name.
Abbreviation: NWA 11105
Observed fall: No
Year found: 2016
Country: Algeria
Mass: 554 g
Classification
history:Recommended: Iron, IAB-MG&n...bsp; Comments:Approved 17 Feb 2017WriteupWriteup from MB 106:
Northwest Africa 11105 (NWA 11105)AlgeriaPurchased: April 2016Classification: Iron meteorite (IAB-MG)History: Two specimens weighing 378 g and 176 g reportedly found in Algeria.Physical characteristics: The main masses have elongate, flattened shapes with dark brown to light red-brown exterior surfaces. Terrestrial alteration, including oxidation and presence of caliche are evident covering approximately half of each rock.Petrography: Polished and etched surfaces show an irregular pattern with rare kamacite laths approximately 1 mm across. Veins of iron oxides extend into the interior. No fusion crust or heat-affected zone was observed.Geochemistry: ICP-MS data, using sample of North Chile (Filomena) as standard (C. Herd and G. Chen UAb): Ni = 6.4, Co = 0.45 (both wt%25); Ir = 2.4, Ga = 66, Ge = 331, W = 2.3, Re = 0.2, Os = 0.4, Cu = 183, Ru = 13.0, Pd = 1.8, Pt = 17.3 (all µg/g).Classification: (C. Herd, UAb): IAB-MG, although concentrations of W and Pt seem to be anomalously high.Specimens: Type specimen consisting of a 12.1 g representative slice and a 14.5 g end piece at UAb. Main mass with Kuntz.Data from:
MB106
Table 0
Line 0:Place of purchase:OuarzazateDate:P April 2016Mass (g):554Pieces:2Class:Iron, IAB-MGShock stage:lowWeathering grade:lowClassifier:C. Herd, UAbType spec mass (g):26.6Type spec location:UAbMain mass:F. KuntzComments:Field name K300; submitted by C. HerdInstitutions
and collectionsUAb: 1-26 Earth Sciences Building, University of Alberta, Edmonton, AB, T6G 2E3, Canada, Canada; Website (institutional address; updated 17 Oct 2011)
Kuntz: Fabien Kuntz, France; Website (private address) Check out my other items!WE COMBINE SHIPPINGPayment and ShippingI combine shipping, means you will pay only one time the S&H fees regardless the quantity in the package. Usualy you will pay a total of 2$ for all your items put together in one, or two packages.I accept Paypal or bank to bank transfer.If you have any question, please contact me.
