Figure F47. A celadonite and calcite vein with brown halos (consisting of brown smectite and Fe oxyhydroxide) in the wall rock on both sides of the vein in Sample 192-1186A-35R-2 (Piece 11, 77-80 cm). Celadonite occurs both at the margins and in the center of the vein, possibly as a result of multiple openings (field of view = 5.5 mm; plane-polarized light; photomicrograph ID# 1186A

Figure F47. A celadonite and calcite vein with brown halos (consisting of brown smectite and Fe oxyhydroxide) in the wall rock on both sides of the vein in Sample 192-1186A-35R-2 (Piece 11, 77-80 cm). Celadonite occurs both at the margins and in the center of the vein, possibly as a result of multiple openings (field of view = 5.5 mm; plane-polarized light; photomicrograph ID# 1186A_233).