Figure F44. The most common type of replacement of olivine phenocrysts is seen in a dusky green halo (left to right): three euhedral olivine phenocrysts are replaced by celadonite, celadonite and calcite, and calcite, respectively in Sample 192-1186A-31R-1 (Piece 3B, 44-48 cm). Goethite is also present in all three pseudomorphs (field of view = 2.8 mm; plane-polarized light; photomicrograph ID# 1186A

Figure F44. The most common type of replacement of olivine phenocrysts is seen in a dusky green halo (left to right): three euhedral olivine phenocrysts are replaced by celadonite, celadonite and calcite, and calcite, respectively in Sample 192-1186A-31R-1 (Piece 3B, 44-48 cm). Goethite is also present in all three pseudomorphs (field of view = 2.8 mm; plane-polarized light; photomicrograph ID# 1186A_230).