Selenite Arancione - 7 Chakra - Sfere da Massaggio - Sfere Colori pastello luminescenti - Altezza: 6 cm - Larghezza: 6 cm- 2 kg - (7)
N. 84013485
Bella struttura gabbrica incrostata di Shergottite marziana NWA16050 - 15 g
N. 84013485
Bella struttura gabbrica incrostata di Shergottite marziana NWA16050 - 15 g
Northwest Africa 16050 (NWA 16050)
(Northwest Africa)
Purchased: 2023 May
Classification: Martian meteorite (Shergottite)
Physical characteristics: Four brownish fragments mostly covered with fusion crust.
Petrography: The meteorite shows a gabbroic texture and is predominantly composed of up to 1.5 mm sized prismatic, irregularly zoned pyroxene, angular, partly euhedral olivine often containing magmatic inclusions, and interstitial maskelynite. Minor phases include chromite, ilmenite, and FeS. The meteorite is highly shocked and contains shock melt veins and pockets.
Geochemistry: olivine: Fa39.7±0.4 (Fa39.1-40.2, FeO/MnO=51±1, n=7); zoned pyroxene: Fs27.9±2.9Wo9.3±2.8 (Fs23.5-34.2Wo3.3-13.0, FeO/MnO=31±2, n=12); maskelynite (An57.6-60.0Ab38.9-41.2Or1.0-1.4, n=7)
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