Description: A beautiful 18g slice of the NWA15653 LL3 meteorite. Polished on one side. From the Meteorite Bulletin: https://www.lpi.usra.edu/meteor/metbull.php?code=78794 Name: Northwest Africa 15653 Abbreviation: NWA 15653 Observed fall: No Year fell: 2022 Country: Algeria Mass: 320 g Northwest Africa 15653 (NWA 15653) Algeria Purchased: Jan 2022 Classification: Ordinary chondrite (LL3) History: Purchased January 21, 2022 by William O?Hara of Berthoud, Colorado from Mohamad Adi in Morocco who purchased it from a local fisherman. Physical characteristics: A single brown stone with a sand-polished stone with well defined tightly packed chondrules visible on the exterior with the unaided eye. The main mass shows two areas on the exterior where ~5mm chondrules appear to have been excavated. Saw cut reveals an interior with numoerous chondrules of various sizes with no metal visible. Petrography: (D. Dickens, CCMS) Optical and microprobe examination of polished probe mount and BSE images show an unbrecciated chondritic meteorite with tightly packed well-delineated unequilibrated chondrules (apparent mean diameter ~1088±785 µm, n=11) set in a fine-grained matrix. Rare sulfides and metal observed. Geochemistry: (D. Dickens, CCMS and A. S. Bell, CUB) olivine Fa15.4±8.1, range Fa3.2-23.9, n=20; range Cr2O3 in ferroan olivine 0.01-0.12 wt.%, mean 0.06±0.04 wt.%, n=17; Ca-pyroxene Fs14.4±7.8Wo1.2±0.5, range Fs6.6-22.3Wo0.2-4.1, n=3. Classification: Ordinary chondrite (LL3) Specimens: 20 g on deposit with Cascadia; Main mass with William O?Hara. From
Price: 150 USD
Location: Berthoud, Colorado
End Time: 2025-01-11T06:23:43.000Z
Shipping Cost: 3.5 USD
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