Figure F85. Photomicrograph of a boudinaged amphibole crystal. The amphibole is extended along an axis subparallel to the foliation, and colorless amphibole fibers have grown in the tensile zone between the grains (Sample 209-1270D-4R-1, 33–37 cm) (plane-polarized light; field of view = 1.40 mm; image 1270D

Figure F85. Photomicrograph of a boudinaged amphibole crystal. The amphibole is extended along an axis subparallel to the foliation, and colorless amphibole fibers have grown in the tensile zone between the grains (Sample 209-1270D-4R-1, 33–37 cm) (plane-polarized light; field of view = 1.40 mm; image 1270D_054).