Fig. 9. Complete replacement of K-feldspar microphenocryst by myrmekite in a microgranodiorite enclave of the Velay granite. Plagioclase compositions in some fine-grained enclaves are nearly homogeneous (An_34-38) and provide an example of how subsolidus hydrothermal reworking can modify the mineral (and bulk rock) composition of the enclaves. (Sample LR-14)