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Gold Basin - Classic American L4 Chondrite from Arizona

Gold Basin - Classic American L4 Chondrite from Arizona

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Gold Basin, L4 chondrite - this meteorite needs no introduction to most collectors.  Gold prospectors in Mohave County Arizona had been finding odd "hot rocks" for many years.  Most of these rocks were discarded as worthless since they were not gold.  It took the keen eye of Professor Jim Kriegh to recognize these hot rocks as meteorites.  Gold Basin is an ancient fall with a long terrestrial age.  But despite it's age, it has much unoxidized metal in it and an attractive mottled matrix. 

This offer is for one fragment selected from the same lot shown in the photo.  Some of these are tiny slices and endcuts that show metal flecks.  The black centimeter cube is shown for scale and is not included.  Your purchase includes a labelled gemjar.

From the Meteoritical Bulletin Entry on Gold Basin -

Gold Basin

Mohave County, Arizona, USA

Initial find 1995 November 24

Ordinary chondrite (L4)

A meteorite was found in an area of arroyos draining the White Hills by Professor Jim Kriegh (UAz, emeritus) while prospecting for gold with a metal detector.  As of 1997 November, 1484 stones have been recovered, with a total mass of 61.0 kg, from an area of ~130 km2.  The largest individual stone has a mass of 1.52 kg.  Classification and mineralogy (D. Kring, UAz):  olivine, Fa24±1; pyroxene Fs20Wo1; kamacite contains 0.72 ± 0.09 wt% Co; weathering grade W2–3.  Specimens:  UAz, 0.8 kg; SI, 8.4 kg; bulk of the mass with Jim Kriegh and his fellow collectors.


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