21001-149 - NWA Possible Achondrite Meteorite Hypabyssal Igneous Rock. In study. 6.1 g Alanqa saharica • Ordovician of Canada (Northwest
Yard notes & kiln story
Description
• Ordovician of Canada (Northwest Territories
P ( office cherifien des phosphates )
Ulna and one phalanx can be recognized
Canada (6: Alberta
Arcticeraurinella
21001-149 - NWA Possible Achondrite Meteorite Hypabyssal Igneous Rock. In study. 6.1 g Alanqa saharica • Ordovician of Canada (NorthwestPetrographic description The sample is mainly composed of euhedral to subhedral clinopyroxene and olivine phenocrysts in a fine grained groundmass. Clinopyroxene (augite) crystals are zoned, occasionally showing green non pleochroic core. The outer rim of augite crystals show light brown color, probably produced by transformation to pigeonite. Olivines have oxidized edges and mostly transformed to iddingsite. Under polarized light microscope (crossed