On Offer: 1.064 gram Lamont Mesosiderite, group A3, meteorite slice.

Name: Lamont

Class: Mesosiderite

Observed fall: No

Year found: 1940

Country: Lamont, Greenwood County, Kansas, USA

Description: 1.064 gram slice of Lamont Mesosiderite stoney-iron meteorite. This is a historic US stoney-iron meteorite find from 1940. It comes with exceptional provenance from the R. Haag collection. It is an extremely rare meteorite. It was acquired during one of the equally historic IMCA auctions during the Denver gem and mineral show. As far as we know, this is the only specimen of the Lamont meteorite that is currently available for sale.

What you get: 1.064g Lamont Mesosiderite meteorite slice as shown, storage/shipping membrane box, and Certificate of Authenticity.

We offer a 100% no questions asked 30 day return policy.

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Lamont

Status: Official

Basic information	Name: Lamont This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 1940 Country: United States Mass: 38.69 kg
Classification history:	Meteoritical Bulletin, MB 81 (1997): Mesosiderite NHM Catalogue, 5th Edition (2000): Mesosiderite MetBase, v. 7.1 (2006): Mesosiderite Recommended: Mesosiderite This is 1 of 298 approved meteorites classified as Mesosiderite.
Writeup	Writeup from MB 81: Lamont Greenwood County, Kansas, USA Found 1940s Mesosiderite A 38.69 kg meteorite was found among stones in a fence row. Mineralogy and classification (A. Rubin and J. Wasson, UCLA): olivine, Fa₂₈; low-Ca pyroxene, Fs_21–39Wo_1.1–4.4; pigeonite, Fs_32–39Wo_7–11; plagioclase, Ab_7.3Or_0.37; subgroup 3 mesosiderite. Specimens: RHaag and Killgore, split 18 kg; SI, ~7 kg; UCLA, ~5 kg; FMNH, ~4 kg; S. Shumer, ~900 g.
Institutions and collections	FMNH: NW Quadrant/Geology The Field Museum of Natural History 1400 South Lake Shore Drive Chicago, IL 60605-2496, USA, United States; Website (institutional address; updated 2024-05-22) SI: Department of Mineral Sciences, NHB-119, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560, United States; Website (institutional address; updated 2012-01-16) UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 2011-10-17) RHaag: Robert Haag, P.O. Box 27527, Tucson, AZ 85726, United States; Website (private address) Killgore: Marvin and Kitty Killgore, Southwest Meteorite Laboratory, P.O. Box 95, Payson, AZ 85547, United States; Website (private address)