Lahmada 048 #4 Ureilite – 4 g

62,09 $

Lahmada 048 is an achondrite ureilite meteorite of only 59 grams discovered in the Western Sahara in a concentration area called Lahmada.

It was discovered on September 23, 2020 by Brahim Elguirah.

Lahmada 048 certainly contains diamonds in view of the difficulties to cut it.

The diamonds, which are rarely larger than a few micrometers in diameter, are probably the result of high-pressure shock waves produced by the collision of the parent body of the ureilites with other asteroids.

Writeup from MB 110 :

Lahmada 048 27°24’20.78″N, 9°51’13.07″W

Saguia el Hamra, Western Sahara

Find: 2020 Sep 23

Classification: Ureilite

History: The meteorite was found by Brahim Elguirah. The meteorite was bought by Jean Redelsperger from Zaid Oualguirah in 2020.

Physical characteristics: A single dark brown stone

Petrography: (J. Gattacceca, CEREGE) Aggregate of blocky olivine grains (grain size 800 µm) with reduced margins. Metal, originally present along olivine rims, is almost entirely replaced by terrestrial weathering products. Contains a significant amount of carbon material, likely diamonds in view of the extreme difficulty to saw the rock.

Geochemistry: Olivine Fa21.9±0.4, CaO 0.36±0.02 wt%, CrO3 0.65±0.02, FeO/MnO = 53.4±7.9 (n=4). Olivine rim Fa5.1 (n=1).

Classification: Ureilite

Specimens: Type specimen at CEREGE. Mais mass with Jean Redelsperger.

 

In stock

Categories: , SKU: dt-016-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-2-1-1-1-1-1-2-2-2-1-1-1-2-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-2-1

Description

Rare and nice piece.

Comes with certificate.

Additional information

Weight 4 g
Dimensions 3 × 2 × 0.2 cm
Form

Slice