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Found 1998 on Hammada al Hamra plateau by R. & R. Pelisson

Classified by Paul P. Sipiera
Planetary Studies Foundation, USA

Preserved mass
40 g. Planetary Studies Foundation
2845 g. SaharaMet, R. & R. Pelisson

Meteorite

H5 chondrite
Sahara - Libya





HaH 259 is a 5 kilogram chondrite found on the Hammadah al Hamra (the red plateau). The plateau extends 300 km from west to east, between Daraj and Brak in Libya. It has been prospected regularly since 1986, and with the discovery of over 450 meteorites, remains, after Dar al Gani, one of the top meteorite recovery spots of the Sahara.

This meteorite was waiting just a few hundred meters away from the cliff in the background.

Sahara plateau



Sahara

This part of the Sahara is a huge sedimentary expanse, the site of ancient marine deposits recalling the oceans which covered it several tens of millions of years ago in the Cretaceous Period.

desert photo

It is chiefly a stony landscape.

slice 109, 27 grams, 108 euros, please email for ordering details

A closer view of a slice slice 110, closer view

The troilite inclusion of the slice 109
troilite

In chondrites, the visible metal is mainly a highly reflective iron alloy which contains a small amount of nickel. Troilite (FeS), an iron sulfide mineral is also present.

hammada

The southern region of the Hammada, with a track leading south to the Awbary erg.

slice 104, 5.6 grams, 22 euros, please email for ordering details




The distribution of meteorites currently stands at one for every 200 sq. km for the entire western region of the Hammada. It's not feasible to cover 2000 Km for a unique find as you would need to pass within 100m of a 1 Kg meteorite in order to have any hope of seeing one in situ. This would be equivalent to ten days of hard visual concentration and a hundred hours of prospecting. That's why, it is important to learn how to recognize the most favorable prospecting zones. Each find is the fruit of your labour and only serves to add to the experience.

Sixteen pieces, from 2 to 900 grams, were found around the main mass of 3.6 kilos. When several fragments are picked up on a very small area and if they appear to be broken fragments of the same meteorite, they are collectively brought together under a unique name and number. This rule does not apply to Antarctic finds where fragments from several different meteorites can be mixed, via wind action and ice movements, and gathered together on areas called Antarctic meteorite stranding surfaces. Each fragment is individually named and the Antarctic database is full of small pieces, some of which are only a few grams in weight.

meteorite in situ



Although ninety (90%) of meteorite falls are chondrites (stony meteorites), their mass represents only 15% of the extraterrestrial material discovered on Earth. The majority of meteorites in exhibition, some 300 tons, are iron meteorites. Structurally more dense and solid compared to chondrites, iron meteorites are able to withstand the rigors of atmospheric entry with minimal effect and thus are better able to withstand the ravages of time.

Sahara track






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reference card Hammadah al Hamra 259
Slice 110 30 grams 120 €
Slice 109 27 grams N/A
Slice 108 13 grams 52 €
Slice 107 12 grams 48 €
Slice 106 7 grams 28 €
Slice 105 6.2 grams 24 €
Slice 104 5.6 grams 22 €
Slice 103 2.5 grams 10 €
Slice 102 2.3 grams 10 €
End cut 101 4.2 grams 16 €
Fragment 100 3,7 grams 15 €

© Copyright : Richard Pelisson, SaharaMet.