Plate 3. Selected key textural relationships in the pelitic and migmatite gneiss. 5. Example of disharmonious fibrolite (S) included in large K-feldspar (K) and plagioclase (P) phenocrysts. Leucosome domain of a migmatitic gneiss. Sample 161-976B-95R-2, 24-28 cm. Cross-polarized light. Scale bar is 200 µm.