Nuevo Mercurio, Oriented Meteorite, Fresh Crust and Contraction Cracks, 25g

On December 15, 1978, a bright fireball was seen over Zacatecas Mexico and meteorites fell over a wide area around the town of Nuevo Mercurio. It was analyzed and classified as an H5 chondrite.

The specimen being offered here is a fresh and attractive example of this fall. This piece has some interesting orientation features. It broke apart in mid-flight and the broken surface is covered in a thin layer of secondary crust. The leading side has thick primary crust and the trailing side has a roll-over lip where the primary crust flowed onto the backside. The specimen was a part of the Bob Haag collection. It weighs 25.1 grams.

Refer to the photos. The black centimeter cube is shown for scale and is not included. You are purchasing the specimen shown. Your purchase will include an ID label and padded storage box. You also get the original Bob Haag specimen card.

From the Meteoritical Bulletin entry for Nuevo Mercurio :



Place of fall: About 10 km N. of the village of Nuevo Mercurio, Zacatecas, Mexico, 250 km SW. of Monterrey.

24.30°N., 102.13°W., coordinates of the centre of the strewn-field.

Date of fall: December 15, 1978, 1850 hrs.

Class and type: Stone. Olivine-bronzite chondrite (H5). Olivine Fa17.3.

Number of individual

specimens: More than 300.

Total weight: Not known, over 5 kg recovered to date.

Circumstances of fall: A bright fireball, traveling NE. to SW. and visible over a radius of at least 200 km, exploded over north-central Mexico and scattered meteorites over an elliptical area more than 10 km in length.

Source: Prof. R. Trevino, Escobedo 336 Sur, Monterrey, Nuevo Leon, Mexico. See also K. Fredriksson et al., 1979. The Nuevo Mercurio, Mexico, chondrite. Meteoritics 14, abs.

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