Figure F84. Photomicrograph of fibrous talc and fine granular talc on the boundary of an olivine porphyroclast. Fibrous talc forms a wispy foliation oblique to the dominant foliation. Fine-grained, granular talc forms a thin band between the fibrous talc and the olivine (Sample 209-1270D-4R-1, 33–37 cm) (plane-polarized light; field of view = 2.75 mm; image 1270D

Figure F84. Photomicrograph of fibrous talc and fine granular talc on the boundary of an olivine porphyroclast. Fibrous talc forms a wispy foliation oblique to the dominant foliation. Fine-grained, granular talc forms a thin band between the fibrous talc and the olivine (Sample 209-1270D-4R-1, 33–37 cm) (plane-polarized light; field of view = 2.75 mm; image 1270D_057).