» » » ADRAR 013 (13.74 gram) endpiece

ADRAR 013 (13.74 gram) endpiece

650 $

In stock

[ Meteoritical Bulletin Database ]

 

Classification: Achondrite Lunar meteorite (melt breccia – (anorthositic norite/gabbro))
Place/Time: 2023 in Algeria
Mass: 3.15kg

 

History: The meteorite was purchased from a meteorite dealer in Timokten, Algeria.

Physical characteristics: Several grayish-greenish fragments including a large 3 kg single stone.

Petrography: Melt breccia composed of grayish-greenish clasts set in abundant anorthite-rich melt rock matrix displaying pronounced flow and quench textures with small ancicular crystals nucleating on larger entrained mineral grains. Major phases are pigeonite, often zoned augite and less abundant olivine. Minor phases include ilmenite, chromite, and troilite.

Geochemistry: olivine: Fa24.0±0.1??(Fa23.9-24.2, FeO/MnO=84±8, n=7); pigeonite: Fs25.0±1.5Wo10.0±0.5??(Fs21.9-27.1Wo9.1-10.6, FeO/MnO=47±3, n=7); zoned Ca-pyroxene: Fs23.4±3.2Wo29.3±6.2??(Fs20.4-26.4Wo16.1-35.2, FeO/MnO=45±5, n=7); calcic plagioclase: An95.8±0.8??(An94.8-97.7, n=7)

Classification: Melt breccia (anorthositic norite/gabbro) based on Stoeffler et al. (1980).

Specimens: Marcin Cimala holds 750 g, Craig Zlimen holds 600 g, Mark Lyon holds a 600 g and a 980 g mass, and Paul Durzan holds 400 g.