.101 grams 4x3x2mm GRAPEVINE MESA Bencubbinite as found Arizona Meteorite COA For Sale

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.101 grams 4x3x2mm GRAPEVINE MESA Bencubbinite as found Arizona Meteorite COA:
$11.99

Grapevine Mesa is one of only 8 CBa Bencubbinites known. This is a new Arizona find by Todd Parker and meteorite hunter Robert Ward.

Grapevine Mesa 35°58’5$6.49\"N, 113°59’49.50\"W

Arizona, United States

Find: 2021 Feb 6

Classification: Carbonaceous chondrite (CBa)

History: On the 6 February 2021, Todd Parker and Robert Ward were searching for gold with metal detectors on Grapevine Mesa, east of Meadview, Mohave County, Arizona. Parker detected a signal, which turned out to be three pieces weighing 252.5 g of a metal-rich meteorite. Together, they recovered 550.3 g in a 2 × 2 m area.

Physical characteristics: Exterior of the stones are rusty with patches of fusion crust. Interior of a 4 × 4.5 cm slice shows rounded to angular silicate fragments (to 1 cm) hosted by rounded to anhedral metal grains to 0.7 cm. Metal constitutes 69 areal% of the slice. The metal sizes, shapes, and distribution closely resemble that of Bencubbin.

Petrography: A 2 × 1.5 cm polished section shows metal grains composed of micron-sized polycrystalline kamacite containing an abundance of micron-sized troilite blebs and stringers (~1 areal%). Silicates consist of magnesian nonporpyritic silicate fragments with a cataclastic texture. White orange-stained silicate fragments separated by black opaque material hosting sub-mm-sized silicate fragments and rounded troilite and kamacite blebs. Thin terrestrial oxide veins are present around the metal grains.

Classification: The meteorite mineralogically matches that of the subgroup A (CBa) Bencubbin-like carbonaceous chondrites. The oxygen isotopes follow on an extension of the current bencubbinite field.

Specimens: Largest mass of 61 g is with Robert Ward. 21 g and a polished mount at ASU.

I will combine the cost of shipping for all the items you win during a 2 week period that are paid for in a single transaction. Please note. If items are paid for separately, they will be shipped separately due to tracking reasons. Also, I ship items within 24 hours from the time of payment. Therefore, do not pay for any items until you are done offerding so I can ship everything in one package. Please take your time and don\'t pay for up to 2 weeks.

Shipping includes tracking and delivery confirmation.

I am a member of the awesome Global Meteorite Association #GMA0021

I am a member of the International Meteorite Collectors Association #9247

Please only pay in one payment when you are all done. Postage is the same for all the items you win over a 2 week period. ONLY pay in ONE PAYMENT when you are all done winning and ready to buy everything you wanted. I mail out all items the same day or in the morning.

Thanks, John Humphries, P.O. BOX 310, Tombstone, AZ 85638

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.101 grams 4x3x2mm GRAPEVINE MESA Bencubbinite as found Arizona Meteorite COA

$11.99