#pallasite

[dozydawn]

extraterrestrial peridot from the esquel meteorite

[dozydawn]

[les-cailloux-du-ciel]

Oued Chebeika 003 28°19.699'N, 11°5.165'W

Sud, Maroc

Trouver: 2024

Classification : Pallasite (Groupe principal)

Historique : Les pierres ont été trouvées au Maroc en 2024 et achetées par Jean Redelsperger à Mustapha Oulkouch à Ensisheim, France, en juin 2024

Caractéristiques physiques : Pierres jaunâtres irrégulières sans croûte de fusion.

Pétrographie : (J. Gattacceca, CEREGE ) Cette roche est composée d'environ 50% vol. de grains d'olivine sub-arrondis de granulométrie 5 mm, enchâssés dans un réseau métallique Fe, Ni. Les minéraux accessoires sont la chromite jusqu'à 600 µm et la troïlite.

Géochimie : Olivine Fa 13,8±0,1 , FeO/MnO 50,2±7,8 (n=4).

Classification : Pallasite (groupe principal).

[mysticplies]

Suited Job for pallasite?

Has the ability to see the optical properties of minerals. Her vision is unique. She is a type of researcher.

[les-cailloux-du-ciel]

Ma météorite rêvée, un simple fragment, mais c'est toute elle quand même.

Et quelle chance de trouver un fragment pour pouvoir l'ajouter à ma collection, c'est une passion qui peut être coûteuse et frustrante si on n'a pas ce genre d'opportunité.

Categories: PALLASITES, Pallasovka (pallasite), STONY-IRON

Pallasovka 49°52′0′′N, 46°36′7′′E

Volgograd district, Russia

Find: July 1990

Pallasite

History: One stone weighing 198 kg was found by N. F. Kharitonov at a shore of an artificial water reservoir, 27.5 km from the town of Pallasovka. Interestingly, the town was named after Peter Pallas (1741–1811), a famous naturalist who took part in the discovery and the first study of the Pallas Iron Mass, which was found near Krasnojarsk in 1749 and gave the name of the pallasite meteorite group. A. E. Milanovsky transferred a sample of the meteorite to the Vernadsky Institute, Moscow.

Petrography and Geochemistry: (M. A. Ivanova, N. N. Kononkova, Vernad; S. E. Borisovsky, Institute of Geology of Ore Deposits, Mineralogy, Moscow)

Petrography: The stone consists of approximately equal parts of olivine and metal, and has abundant brown, rusty fusion crust with regmaglypts.

Geochemistry: Olivine (mg# 87.7, Fe/Mn = 45.2, Fe/Mg = 0.14; similar to main group pallasites). Metal (bulk ICP AES) Ni = 13.1 wt%; Ir = 0. 12, Au = 2.8, Pt = 3.2, Ga = 22.5, Ge = 24.9 (all ppm). Kamacite (Co = 0.61, Ni = 7.21; both wt%) and taenite (Co = 0.35, Ni = 26.5 both wt%). Additional phases: Troilite (Ni = 0.41 wt%), schreibersite, and chromite (mg# 36; Fe/Mn = 48.9; Cr/(Cr+Al) = 77.2). Note: Chromites in this sample differ in composition from that of the main and Eagle Station groups.

Classification: Pallasite (Main group).

Specimens: A 9336 g sample and one polished section are on deposit at Vernad. The main mass is held by an anonymous purchaser.

[detournementsmineurs]

"Pallasite" de Russie présentée au Musée de la Collection de Minéraux de Jussieu - Université Pierre et Marie Curie, Paris, novembre 2024.

[pocket-gems]

Hey sense you had a take in a comet do you have one on a meteor.

Shockers, I do

[geologystims]

Sericho Meteorite Slab | fasanarock on Instagram